Tnew = unique (Tnew); size (Tnew) ans = 12 106 8 unique deleted two duplicate rows. (I'm presuming the 0.25 and 0.5 are confidence limits of the test and not values of the statistic as Adam presumed below). The duplicate rows remained after running it this time. Can a prospective pilot be negated their certification because of too big/small hands? Bonsoir (Good evening) Coucou! It worked perfectly and removed all the duplicate rows. {'B'} 0.2785 0.035712 0.33 https://www.mathworks.com/matlabcentral/answers/299722-remove-duplicate-rows-from-a-matrix, https://www.mathworks.com/matlabcentral/answers/299722-remove-duplicate-rows-from-a-matrix#answer_231880, https://www.mathworks.com/matlabcentral/answers/299722-remove-duplicate-rows-from-a-matrix#comment_385554, https://www.mathworks.com/matlabcentral/answers/299722-remove-duplicate-rows-from-a-matrix#comment_972384, https://www.mathworks.com/matlabcentral/answers/299722-remove-duplicate-rows-from-a-matrix#answer_231869, https://www.mathworks.com/matlabcentral/answers/299722-remove-duplicate-rows-from-a-matrix#comment_385526, https://www.mathworks.com/matlabcentral/answers/299722-remove-duplicate-rows-from-a-matrix#comment_385530, https://www.mathworks.com/matlabcentral/answers/299722-remove-duplicate-rows-from-a-matrix#comment_385551, https://www.mathworks.com/matlabcentral/answers/299722-remove-duplicate-rows-from-a-matrix#comment_385555, https://www.mathworks.com/matlabcentral/answers/299722-remove-duplicate-rows-from-a-matrix#comment_385634, https://www.mathworks.com/matlabcentral/answers/299722-remove-duplicate-rows-from-a-matrix#comment_972399, https://www.mathworks.com/matlabcentral/answers/299722-remove-duplicate-rows-from-a-matrix#comment_973188. Remove duplicate rows in table - MATLAB Answers - MATLAB Central Remove duplicate rows in table 211 views (last 30 days) Show older comments DavidL88 on 20 Jan 2021 0 Link Translate Commented: DavidL88 on 28 Jan 2021 Accepted Answer: Adam Danz Hi I have a table with four columns and roughly 45,000 rows (example below). Create an intermediate table that has the same structure as the source table and . How many transistors at minimum do you need to build a general-purpose computer? [1999;1999;1999;2000;2001;2002;2000;2001;2004;2000;2005;2005;2001]. > For rowNum1 and 2 the same vales are there. your location, we recommend that you select: . the post title is misleading - you don't want to remove duplicate rows, you want to remove rows with the same contents, irrespective of order, You may receive emails, depending on your. {'B'} 0.95751 0.93399 0.5 In this article, I'll go over the things you should consider when choosing a power supply for your computer with an Nvidia GeForce RTX 3090 Ti graphics card. Then click on Unique Records Only. Based on It's expected that they are cell arrays with the same size. Accepted Answer your location, we recommend that you select: . For example, If floating point representation is causing problems like this, you'll need to modify these two lines of my solution. Could you attach a mat file containing the table? I have a table with four columns and roughly 45,000 rows (example below). If I remove duplicates in Excel, 4 rows of data get removed. {'A'} 0.90579 0.42176 0.25 It can be done using unique (), length (), setdiff (), and numel () functions that are illustrated below: Using Unique () Unique (A) function is used to return the same data as in the specified array A without any repetitions. GeeTwo on 16 Aug 2022 Vote 0 Link Translate %Here's a much cleaner way to do it with 2019a or later! I figured it out. your location, we recommend that you select: . [testID, testNames] = findgroups(T.Test); rowNum1 = arrayfun(@(i) {find(testID==i & T.col4==0.25, 2)}, unique(testID)); rowNum2 = arrayfun(@(i) {find(testID==i & T.col4==0.50, 2)}, unique(testID)); rowNums = cell2mat(cellfun(@(c){padarray(c,[2-numel(c),0],NaN. Thanks. Is there a way to adapt this code to remove any unique test that does not have a value <0.05 in col3? The matrix is an example, but generally if two rows have the same value in the first column I have to remove the second one. Using the size or count method with pandas. Why do we use perturbative series if they don't converge? rowNum1 = arrayfun(@(i) {find(testID==i & T.T3==0.25, 2)}, unique(testID)); rowNum2 = arrayfun(@(i) {find(testID==i & T.T3==0.50, 2)}, unique(testID)); It shouldn't be a floating point as those numbers represent exact time-stamps. This the exact code I ran on my table T. T3 is the last column and T4 is the first column. Example: a = [1,2; 3,4; 5,6; 1,2; 7,8] a = 1 2 3 4 5 6 1 2 7 8 %. (p. vanashanugat ) 2. Tnew = unique (Tnew); size (Tnew) ans = 12 106 8 unique deleted two duplicate rows. The data is attached, also below. - rayryeng May 7, 2017 at 19:40 Add a comment 1 Answer Sorted by: 1 You can use any for this purpose as follows: A = A (any (A,2),:); % any (A,2) gives the logical indices of the rows whose at least one element is non-zero Share Improve this answer Follow edited May 7, 2017 at 14:16 %use default tolerance. I have a table with four columns and roughly 45,000 rows (example below). Please help to apply the logic. I double-checked and confirmed this on one duplicate. indicating which test-names are flagged. It didn't make any change to the table. . Sorry my mistake. Find the treasures in MATLAB Central and discover how the community can help you! You could upload it and remove it after I confirm that I received it. The 0.25 values for this section are in rows 39 and 40 of the table T. FCL' 0.449377841816944 0.653086728317921 0.242187500000000, FCL' 0.379117217892076 0.705573606598350 0.246093750000000, FCL' 0.411715894798510 0.683829042739315 0.250000000000000, FCL' 0.411715894798510 0.680329917520620 0.250000000000000, FCL' 0.564101287653156 0.573856535866034 0.253906250000000, FCL' 0.794131830628734 0.429142714321420 0.257812500000000, This is the same section after running the code. The solution relies on the Date field being sorted so unique returns the first/lowest dateif possibly not, then sort first. 3million rows x 50 columns. {'B'} 0.54688 0.84913 0.25 (p. paitaRak ) 3. remove duplicate rows from a matrix - MATLAB Answers - MATLAB Central remove duplicate rows from a matrix 83 views (last 30 days) Show older comments Ananya Malik on 16 Aug 2016 0 Link Commented: Walter Roberson on 14 Aug 2020 Accepted Answer: Thorsten I have a matrix of the form sites are not optimized for visits from your location. rowNum3 finds those Tests with a value < 0.05 in T2. Excel spreadsheet Did the apostolic or early church fathers acknowledge Papal infallibility? You can also select a web site from the following list: Select the China site (in Chinese or English) for best site performance. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. I sorted rowNum1 and got back this. B=[A(A.Size==0,:);A([ia+find(A.Size==0,1, I'm guessing the selection on Size==1 is only artificial given no duplicates by inspection. Sometimes when the cells are stored in different formats within the same column in the raw data, they get duplicated. and nothings seems to work. I copy a sample of the table below before running this code. Not at all clear what is the result wanted from this dataset, to me, anyways contains the test names which can be strings, character vectors, categoricals, or numeric. Given that rowNum1 and 2 extracted these cells they should be equal to .25 and .5 exactly? A = table([1;2;3;3;3;3;4;4;4], [ 0;0;0;0;1;1;1;1;1], [1999;1999;1999;2000;2001;2002;2000;2001;2004]); If ID is the same and within that ID the size = 1 then if there are more than one rows, keep the row that contains the earliest Date for that ID. Can I email you the table rather than uploading it here? Why was USB 1.0 incredibly slow even for its time. Delete Rows by Row Number Delete rows 18, 20, and 21 from the table. Choose a web site to get translated content where available and see local events and If ID is the same and within that ID the size = 1 then if there are more than one rows, keep the row that contains the earliest Date for that ID. None get removed using unique () SeaDek Certified Fabricators are factory trained to specialize in the entire SeaDek process. Not the answer you're looking for? Unable to complete the action because of changes made to the page. Central limit theorem replacing radical n with n. Can we keep alcoholic beverages indefinitely? "Bonjour" means both good morning and hello. {'C'} 0.95717 0.39223 0.25 Seasonic Prime TX-750 Check Price on Amazon Amazon Affiliate Link. Remove dublicate rows in long table using matlab Extracting rows from .mat table using for loop in MATLAB fetch in matlab with SELECT using postgreSQL locks table long after completion how to remove only the desired row from the matrix and return the rest rows of a matrix using matlab [testID, testNames] = findgroups(T.Test); rowNum1 = arrayfun(@(i) {find(testID==i & T.col4==0.25, 2)}, unique(testID)); rowNum2 = arrayfun(@(i) {find(testID==i & T.col4==0.50, 2)}, unique(testID)); rowNums = cell2mat(cellfun(@(c){padarray(c,[2-numel(c),0],NaN. Now call unique like you did, but use the flag first to grab the first unique: Site design / logo 2022 Stack Exchange Inc; user contributions licensed under CC BY-SA. The solution above removes duplicate values (cells) from matrix (and returns a vector), but I need to remove duplicate rows and return a matrix the same matrix without duplicate rows. Test col2 col3 col4 Tnew ( [18,20,21],:) = []; size (Tnew) ans = 12 103 8 The table contains information on 103 patients now. Other MathWorks country In the Advanced Filter window, check on Filter the List, in-Place to filter the dataset in its current location. Are you sure they are duplicates? However, it requires you to have sufficient space available in the database to temporarily build the duplicate table. We do not currently allow content pasted from ChatGPT on Stack Overflow; read our policy here. Are you sure they are duplicates? 1 You can use logical indexing: a= [1; 2 ; 3]; b= [ 4; 5; 6 ]; T=table (a,b); rowidx = (T.b <= 5); T = T (~rowidx, :); Which returns: T = 12 table a b _ _ 3 6 Share Follow answered Nov 15, 2017 at 14:46 sco1 12.1k 5 28 46 Add a comment 1 Fast, simple. When inspecting gg we see that there are still duplicate rows. To omit any rows in a table that are duplicated, use the unique function. To omit any rows in a table that are duplicated, use the unique function. Reload the page to see its updated state. Connect and share knowledge within a single location that is structured and easy to search. I had a question and got an answer yesterday about removing doubling rows in a matrix, and I can't figure out why it omits certain rows in a matrix. Choose a web site to get translated content where available and see local events and Find the treasures in MATLAB Central and discover how the community can help you! Or you could create a very similar table with dummy-data and make sure that it has the same problem as your table. {'C'} 0.15761 0.75774 0 Choose a web site to get translated content where available and see local events and (I'm presuming the 0.25 and 0.5 are confidence limits of the test and not values of the statistic as Adam presumed below). Also, if there is space/s at the beginning or at the end of these fields, when you filter them out they look the same, however, when you plot a Pivot Table, they appear as separate . Mathematica cannot find square roots of some matrices? {'A'} 0.91338 0.79221 0.5 Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide. },5,1),rand(15,1), rand(15,1), repmat([0;.25;.25;.5;.5],3,1), % For each testtype, identify the first row where col4 is .25 and .50. # Delete duplicate rows based on specific columns df2 = df.drop_duplicates(subset=["Courses", "Fee"], keep=False) print(df2) Yields the same output as above. So if none of the cells below in col3 for the 'A' test have a value that is <0.05 then remove all rows for 'A'? Certified Fabricators digitally pattern boats, create CAD drawings, cut SeaDek PE/EVA material using CNC technology, and install the finished products. Select your List-Range values. If you look at the first example you'll see that in the first column of the duplicate rows the names are slight different (where the ms times are). I adapted this to my dataset and it seems to erase any row with 0.25 or 0.5. My original solution removed the first row that contains .25 or .50 in col4 for each test. MathWorks is the leading developer of mathematical computing software for engineers and scientists. count() is similar Message-ID: 1521058742 Example 1 - Remove Duplicate Rows in R Data Frame In this example, we will create a data frame . To my eyes anyways, the above data are all for the same test for the first three and then the second set of three; but the fourth column data values are unique other than by happenstance it appears that the last @250ms is same in second and fourth columns as the first @500ms. To do so follow the instructions below. {'B'} 0.09754 0.65574 0 Looking through values listed in rowNum1 and 2, both rows in T that match the values 0.25 and 0.5 seem to be identified and are listed. remove duplicate rows from a matrix - MATLAB Answers - MATLAB Central remove duplicate rows from a matrix 95 views (last 30 days) Show older comments Ananya Malik on 16 Aug 2016 0 Link Translate Commented: Walter Roberson on 14 Aug 2020 Accepted Answer: Thorsten I have a matrix of the form To delete duplicate rows on the basis of multiple columns, specify all column names as a list. {'C'} 0.95717 0.39223 0.25 CGAC2022 Day 10: Help Santa sort presents! It will return a logical column vector indicating which test groups do not contain any col4 values less than 0.05. rowNum3 = arrayfun(@(i) {find(testID==i & TableMain.T2<0.50)}, unique(testID)); rowNums4 = cell2mat(cellfun(@isempty,rowNum3)). . Help us identify new roles for community members, Proposing a Community-Specific Closure Reason for non-English content, Fastest way to duplicate an array in JavaScript - slice vs. 'for' loop, Remove pandas rows with duplicate indices. rev2022.12.11.43106. sites are not optimized for visits from your location. It's expected that they are cell arrays with the same size. A=unique (A,'rows'); toc Will yield: Theme Copy A = 1 1 0 1 1 1 Therefore, A still contains one instance of each row that was duplicate. Should teachers encourage good students to help weaker ones? The advantage of using this method is faster ingestion since de . Unable to complete the action because of changes made to the page. warning, if position in the row is important then you dont want this. Thanks. It will return a logical column vector indicating which test groups do not contain any col4 values less than 0.05. rowNum3 = arrayfun(@(i) {find(testID==i & TableMain.T2<0.50)}, unique(testID)); rowNums4 = cell2mat(cellfun(@isempty,rowNum3)). {'C'} 0.80028 0.17119 0.5. to have the same values in both variables unless the result is an empty array (no matches). I ran that second script (adapted below). {'B'} 0.54688 0.84913 0.25 This the exact code I ran on my table T. T3 is the last column and T4 is the first column. 7. If I remove duplicates in Excel, 4 rows of data get removed. Given that rowNum1 and 2 extracted these cells they should be equal to .25 and .5 exactly? So in this case the new table would look like this: B = table ( [1;2;3;3;3;4], [ 0;0;0;0;1;1], [1999;1999;1999;2000;2001;2000]); B.Properties.VariableNames = {'ID' 'Size' 'Date'}; Thanks! Tnew ( [18,20,21],:) = []; size (Tnew) ans = 12 103 8 The table contains information on 103 patients now. to have the same values in both variables unless the result is an empty array (no matches). Can anyone advise how I delete the first of these rows (the first one of the .25 and the first one of the 0.5 rows) for every statistical test? Thanks for your help! I thought this might be due to the dimensions being different in that the previous code expected two matches/duplicates but this code is open to a variable number of matches? How could my characters be tricked into thinking they are on Mars? In this article, we will discuss how to find duplicate values and their indices within an array in MATLAB. elegant: T (T.b <= 5,:) = []; Share Follow answered Nov 15, 2017 at 20:45 {'B'} 0.96489 0.67874 0.5 Sorry my mistake. rowNum1 = arrayfun(@(i) {find(testID==i & T.T3==0.25, 2)}, unique(testID)); rowNum2 = arrayfun(@(i) {find(testID==i & T.T3==0.50, 2)}, unique(testID)); It shouldn't be a floating point as those numbers represent exact time-stamps. I want only one data row for same month. Based on Next, go to Data in the Sort & Filte r group and click on Advanced. Now the solution only removes the rows if the .25 or .50 is a duplicate within each test. In, FCL' 0.379117217892076 0.705573606598350 0.246093750000000. Does not work. The mathwork contact button does not support uploads. Removes count of rows from the beginning of the table, starting at the offset specified. offers. Example 1. If you go to France, the single most common word for hello is " Bonjour ". Once you have clicked on it, a small dialog box will appear. tmp3 = []; for i=1:numel (tmp2 (:,1))-1 if tmp2 (i,1) == tmp3 tmp2 (i,:) = []; end tmp3 = tmp2 (i,1); end But all of the methods seem to omit the first row to remove. Moves the rows in the duplicate table back into the original table. matlab: duplicate rows removal [duplicate]. How to remove duplicate rows and select first from duplicate I have a data in worksheet where PO column contains the same value and WBS element column contains different value. I copy a sample of the table below before running this code. Another option is to filter out the duplicate rows in the data during query. You can also select a web site from the following list: Select the China site (in Chinese or English) for best site performance. MathWorks is the leading developer of mathematical computing software for engineers and scientists. The tests do not have to be in order. Find the treasures in MATLAB Central and discover how the community can help you! You can also select a web site from the following list: Select the China site (in Chinese or English) for best site performance. Accelerating the pace of engineering and science. Accelerating the pace of engineering and science. Remove duplicates from table with string, datetime, double 174 views (last 30 days) Show older comments Harry Lindner on 25 Jun 2015 Commented: Sean de Wolski on 26 Jun 2015 Accepted Answer: Sean de Wolski cat.csv The data is attached, also below. For every statistical test the values in the 4th column are duplicated (at .25 and 0.5). In, FCL' 0.379117217892076 0.705573606598350 0.246093750000000. {'C'} 0.48538 0.65548 0.33 Looking through values listed in rowNum1 and 2, both rows in T that match the values 0.25 and 0.5 seem to be identified and are listed. None get removed using unique() Thank you for the help! Drops the duplicate table. {'A'} 0.91338 0.79221 0.5 MathWorks est le leader mondial des logiciels de calcul mathmatique pour les ingnieurs et les scientifiques. {'A'} 0.12699 0.91574 0.25 Sign in to comment. Second, those trailing 0s are suspicious. Best 750-1000 Watt PSU. in Untitled4>@(i){find(testID==i&TableMain.T2<0.50)} (line 6), below returns a logical vector the same size as. Find the treasures in MATLAB Central and discover how the community can help you! 'Perm t-test equal [250ms,500ms 92, 108]: Avg: 11_right FCL', 'Perm t-test equal [500ms,900ms 92, 108]: Avg: 11_right FCL'. Dropbox), send the link, and then remove it from the cloud service. Not at all clear what is the result wanted from this dataset, to me, anyways contains the test names which can be strings, character vectors, categoricals, or numeric. The effect as you demonstrate is what I'm looking for. What matters is if those values equal 0.25 or 0.50. which would also explain the trailing 0s. Or you could upload it to a cloud service (e.g. For rowNum1 and 2 the same vales are there (both are listed as 648x1 cell same as before with first script (with 39 and 40, the first set of duplicates, listed there too). Now the solution only removes the rows if the .25 or .50 is a duplicate within each test. Can anyone advise how I delete the first of these rows (the first one of the .25 and the first one of the 0.5 rows) for every statistical test? arrays matlab matrix duplicates Please help, as I already spent some hours trying to fix it myself (I suck at programming) and nothings seems to work. I have a table with a number of columns and would like to delete some rows based on some conditions. Remove duplicate rows from matrix - MATLAB Answers - MATLAB Central Remove duplicate rows from matrix Show older comments MC on 14 May 2017 Vote 1 Link Translate Edited: Stephen23 on 6 Mar 2022 Accepted Answer: Stephen23 Hello I have a 2xN matrix where each column represent the x and y coordinates of a 2D point. {'B'} 0.2785 0.035712 0.33 The -local- command is a way of defining macro in Stata. Or you could upload it to a cloud service (e.g. https://uk.mathworks.com/matlabcentral/answers/494161-removing-rows-duplicates-based-on-a-condition, https://uk.mathworks.com/matlabcentral/answers/494161-removing-rows-duplicates-based-on-a-condition#comment_773145, https://uk.mathworks.com/matlabcentral/answers/494161-removing-rows-duplicates-based-on-a-condition#comment_773148, https://uk.mathworks.com/matlabcentral/answers/494161-removing-rows-duplicates-based-on-a-condition#answer_404121, https://uk.mathworks.com/matlabcentral/answers/494161-removing-rows-duplicates-based-on-a-condition#comment_773204. For example, If floating point representation is causing problems like this, you'll need to modify these two lines of my solution. Then you have to identify which rows of the table have those test names. Delete Rows by Row Number Delete rows 18, 20, and 21 from the table. I don't see the duplication in the sample dataset? _____ _______ ________ ____ _____ _______ ________ ____ In this post I explain advanced manipulation of locals via macro lists, which allow us to get the number of elements in a local, handle duplicate elements, sort (and shuffle) elements and perform other logical operations. Tnew ( [18,20,21],:) = []; size (Tnew) ans = 12 103 8 The table contains information on 103 patients now. Deletes all rows from the original table that are also located in the duplicate table. rowNum1 = arrayfun(@(i) {find(testID==i & abs(T.col4-0.25)<0.00001, 2)}, unique(testID)); rowNum2 = arrayfun(@(i) {find(testID==i & abs(T.col4-0.50)<0.00001, 2)}, unique(testID)); % ---> ---> ---> ---> ---> ---> ---> ---> ^^^^^^^^^^^^^^^^^^^^^^^. > For rowNum1 and 2 the same vales are there. There is a duplicate of all 0.25 and 0.5s. Usage Based on Re: Remove PivotTable Duplicate Row Labels. {'B'} 0.95751 0.93399 0.5 Unable to complete the action because of changes made to the page. Based on 1. {'A'} 0.81472 0.14189 0 So in this case the new table would look like this: B = table([1;2;3;3;3;4], [ 0;0;0;0;1;1], [1999;1999;1999;2000;2001;2000]); I can't come up with anything other than a solution involving a nested loop, which will have horrible performance on larger sets of data. Can I email you the table rather than uploading it here? rowNums4 identifies those that came back negative and I can use this vector to remove those rows. {'C'} 0.97059 0.74313 0.25 I'm not sure why I got a different result. Can several CRTs be wired in parallel to one oscilloscope circuit? This is done by transferring only the unique rows to the newly created table and deleting the original one (with the remaining duplicate rows). I tried removing ", 2" after <0.05 in the first line but same response. Other MathWorks country there are 2 rows for same data. The tests do not have to be in order. ( Hi ! I split this column after the second ms and re-ran your code, using the second new column as the test idenifier, so that the two rows are now identified as the same test. Or maybe you meant that they have the same values as the previous version which would only happen if all tests had duplicates for .25 and .50. It didn't make any change to the table. (p. paranapariyaN ) 4. The question is whether their floating point representation is causing a problem with the equality tests. The first column is the name of statistical test (of which there are several hundred different tests). . Removing duplicate rows (not "unique") - MATLAB Answers - MATLAB Central Removing duplicate rows (not "unique") 153 views (last 30 days) Show older comments Michael Siebold on 4 May 2016 0 Link Translate Answered: GeeTwo on 16 Aug 2022 Accepted Answer: Roger Stafford rowNum1 = arrayfun(@(i) {find(testID==i & abs(T.col4-0.25)<0.00001, 2)}, unique(testID)); rowNum2 = arrayfun(@(i) {find(testID==i & abs(T.col4-0.50)<0.00001, 2)}, unique(testID)); % ---> ---> ---> ---> ---> ---> ---> ---> ^^^^^^^^^^^^^^^^^^^^^^^. ( Hi !) Learn more about unique remove duplicates string table double . sites are not optimized for visits from your location. rowNums4 identifies those that came back negative and I can use this vector to remove those rows. Thanks for your help! Choose a web site to get translated content where available and see local events and A = [1 2 3 45; 3 2 1 45; 1 4 5 54; 5 4 1 54]; You have a row that begins with 5, but no output row that begins with 5. your location, we recommend that you select: . Delete Rows by Row Number Delete rows 18, 20, and 21 from the table. Dropbox), send the link, and then remove it from the cloud service. Start Hunting! There is a duplicate of all 0.25 and 0.5s. I tried removing ", 2" after <0.05 in the first line but same response. https://www.mathworks.com/matlabcentral/answers/722478-remove-duplicate-rows-in-table, https://www.mathworks.com/matlabcentral/answers/722478-remove-duplicate-rows-in-table#comment_1275414, https://www.mathworks.com/matlabcentral/answers/722478-remove-duplicate-rows-in-table#answer_602570, https://www.mathworks.com/matlabcentral/answers/722478-remove-duplicate-rows-in-table#comment_1275426, https://www.mathworks.com/matlabcentral/answers/722478-remove-duplicate-rows-in-table#comment_1275483, https://www.mathworks.com/matlabcentral/answers/722478-remove-duplicate-rows-in-table#comment_1275493, https://www.mathworks.com/matlabcentral/answers/722478-remove-duplicate-rows-in-table#comment_1275503, https://www.mathworks.com/matlabcentral/answers/722478-remove-duplicate-rows-in-table#comment_1275633, https://www.mathworks.com/matlabcentral/answers/722478-remove-duplicate-rows-in-table#comment_1275648, https://www.mathworks.com/matlabcentral/answers/722478-remove-duplicate-rows-in-table#comment_1275658, https://www.mathworks.com/matlabcentral/answers/722478-remove-duplicate-rows-in-table#comment_1276763, https://www.mathworks.com/matlabcentral/answers/722478-remove-duplicate-rows-in-table#comment_1276863, https://www.mathworks.com/matlabcentral/answers/722478-remove-duplicate-rows-in-table#comment_1276993, https://www.mathworks.com/matlabcentral/answers/722478-remove-duplicate-rows-in-table#comment_1280992, https://www.mathworks.com/matlabcentral/answers/722478-remove-duplicate-rows-in-table#comment_1281157, https://www.mathworks.com/matlabcentral/answers/722478-remove-duplicate-rows-in-table#comment_1281292, https://www.mathworks.com/matlabcentral/answers/722478-remove-duplicate-rows-in-table#comment_1281352, https://www.mathworks.com/matlabcentral/answers/722478-remove-duplicate-rows-in-table#comment_1292288. The effect as you demonstrate is what I'm looking for. informal) All (Hello, used on the phone) Hello in French : Top-20 words and expressions 1 - Bonjour ! offers. offers. ie if (1,2) is different to (2,1). I believe Michael wanted all instances of each row that appears multiple times be removed. I am trying to remove a column from a matlab table (not a matrix) with the next codes: %remove one for the last column TJNew= removevars (TJClean,5); TJNew= removevars (TJClean,'Prob2'); TJNew= removevars (TJClean,TJClean.Prob2); but I am getting this error: Undefined function or variable 'removevars'. Working directly with the factory or a Certified Fabricator, SeaDek Certified Installers are factory. {'A'} 0.12699 0.91574 0.25 Is there a way to adapt this code to remove any unique test that does not have a value <0.05 in col3? How large do you expect your real data to be? I ran that second script (adapted below). sites are not optimized for visits from your location. Examples of frauds discovered because someone tried to mimic a random sequence, Counterexamples to differentiation under integral sign, revisited. Refer to the duplicate, but operate on the transpose. TIA. 'Perm t-test equal [250ms,500ms 92, 108]: Avg: 11_right FCL', 'Perm t-test equal [500ms,900ms 92, 108]: Avg: 11_right FCL'. {'A'} 0.90579 0.42176 0.25 Reload the page to see its updated state. rowNum3 = arrayfun(@(i) {find(testID==i & T.col4<0.50)}, unique(testID)); rmIdx = ismember(T.Test, testNames(idx)); You may receive emails, depending on your. so I want the first row of data for each month. You can create an intermediate table and use it to remove duplicate rows. (p. maurusi ) 5. Can anyone help. You could upload it and remove it after I confirm that I received it. I sorted rowNum1 and got back this. https://fr.mathworks.com/matlabcentral/answers/722478-remove-duplicate-rows-in-table, https://fr.mathworks.com/matlabcentral/answers/722478-remove-duplicate-rows-in-table#comment_1275414, https://fr.mathworks.com/matlabcentral/answers/722478-remove-duplicate-rows-in-table#answer_602570, https://fr.mathworks.com/matlabcentral/answers/722478-remove-duplicate-rows-in-table#comment_1275426, https://fr.mathworks.com/matlabcentral/answers/722478-remove-duplicate-rows-in-table#comment_1275483, https://fr.mathworks.com/matlabcentral/answers/722478-remove-duplicate-rows-in-table#comment_1275493, https://fr.mathworks.com/matlabcentral/answers/722478-remove-duplicate-rows-in-table#comment_1275503, https://fr.mathworks.com/matlabcentral/answers/722478-remove-duplicate-rows-in-table#comment_1275633, https://fr.mathworks.com/matlabcentral/answers/722478-remove-duplicate-rows-in-table#comment_1275648, https://fr.mathworks.com/matlabcentral/answers/722478-remove-duplicate-rows-in-table#comment_1275658, https://fr.mathworks.com/matlabcentral/answers/722478-remove-duplicate-rows-in-table#comment_1276763, https://fr.mathworks.com/matlabcentral/answers/722478-remove-duplicate-rows-in-table#comment_1276863, https://fr.mathworks.com/matlabcentral/answers/722478-remove-duplicate-rows-in-table#comment_1276993, https://fr.mathworks.com/matlabcentral/answers/722478-remove-duplicate-rows-in-table#comment_1280992, https://fr.mathworks.com/matlabcentral/answers/722478-remove-duplicate-rows-in-table#comment_1281157, https://fr.mathworks.com/matlabcentral/answers/722478-remove-duplicate-rows-in-table#comment_1281292, https://fr.mathworks.com/matlabcentral/answers/722478-remove-duplicate-rows-in-table#comment_1281352, https://fr.mathworks.com/matlabcentral/answers/722478-remove-duplicate-rows-in-table#comment_1292288. To my eyes anyways, the above data are all for the same test for the first three and then the second set of three; but the fourth column data values are unique other than by happenstance it appears that the last @250ms is same in second and fourth columns as the first @500ms. Ready to optimize your JavaScript with Rust? Check out my Recommended Power Supplies for RTX 3090 Ti GPUs below. What am I doing wrong? . {'C'} 0.97059 0.74313 0.25 rowNum3 finds those Tests with a value < 0.05 in T2. {'C'} 0.48538 0.65548 0.33 {'C'} 0.80028 0.17119 0.5. Remove the first row from the table. rowNum1 = arrayfun(@(i) {find(testID==i & T.T3==0.25, 1)}, unique(testID)); rowNum2 = arrayfun(@(i) {find(testID==i & T.T3==0.50, 1)}, unique(testID)); First, please see my previous comment which I may have added while you were typing your response (I updated my solution). Please help, as I already spent some hours trying to fix it myself (I suck at programming.) offers. Table.RemoveRows(table as table, offset as number, optional count as nullable number) as table About. Is it possible to hide or delete the new Toolbar in 13.1? I'm getting the below message. Reload the page to see its updated state. The rubber protection cover does not pass through the hole in the rim. This method is simple. Or you could create a very similar table with dummy-data and make sure that it has the same problem as your table. I split this column after the second ms and re-ran your code, using the second new column as the test idenifier, so that the two rows are now identified as the same test. I've also tried to do it in different ways, for example; [~, III, ~] = unique (M,'first','rows'); %removing double points III = sort (III); pleb = M (III,:); gg=sort (pleb); But they either delete non duplicate data, or delete too few data. Tnew ( [18,20,21],:) = []; size (Tnew) ans = 12 103 8 The table contains information on 103 patients now. I don't see the duplication in the sample dataset? I thought this might be due to the dimensions being different in that the previous code expected two matches/duplicates but this code is open to a variable number of matches? A default count of 1 is used if the count parameter isn't provided. Remove duplicates from table with string, datetime, double 156 views (last 30 days) Show older comments Harry Lindner on 25 Jun 2015 0 Link Translate Commented: Sean de Wolski on 26 Jun 2015 Accepted Answer: Sean de Wolski cat.csv The data is attached, also below. Duplicate elements Add and remove elements . Tnew = unique (Tnew); size (Tnew) ans = 12 106 8 unique deleted two duplicate rows. > It shouldn't be a floating point as those numbers represent exact time-stamps, They aren't integers so it's not debatable whether they are represented by floating point or not. . You will notice that the first row has automatically been deselected. Start with A = magic (4) A = 16 2 3 13 5 11 10 8 9 7 6 12 4 14 15 1 Then, delete the second column of A using A (:, 2) = [] This changes matrix A to A = 16 3 13 5 10 8 9 6 12 4 15 1 It doesn't matter that. You may receive emails, depending on your. remove duplicates missing in excel 365 Hereditary Meaning in Hindi Adjective 1. The arg_max () aggregated function can be used to filter out the duplicate records and return the last record based on the timestamp (or another column). How to delete duplicate rows in SQL Server? in Untitled4>@(i){find(testID==i&TableMain.T2<0.50)} (line 6), below returns a logical vector the same size as. Logic works more simply without having to not subset that grouping (the mess about the complicated indexing expression for. What matters is if those values equal 0.25 or 0.50. which would also explain the trailing 0s. It is a prety big data set. 92.0000 166.0000 71.0000 173.0000 55.0000 235.0000 72.6667 191.3333]; I want to remove the redundant rows from A. Solution #2: Handle duplicate rows during query. There may be some small differences between the values that matlab does not show by default. Once you have successfully selected the table, you will need to click on the Data tab on the top of the screen and then select "Remove Duplicates" in the Data Tools drop-down box as shown below. ans = 1 2 3 4 5 6 7 8 The order doesn't matter. {'C'} 0.15761 0.75774 0 MathWorks is the leading developer of mathematical computing software for engineers and scientists. },5,1),rand(15,1), rand(15,1), repmat([0;.25;.25;.5;.5],3,1), % For each testtype, identify the first row where col4 is .25 and .50. Something can be done or not a fit? rmRows = rowNums(2, ~isnan(rowNums(2,:))); Thank you. It worked perfectly and removed all the duplicate rows. It returns back exactly A. identical. You can set 'keep=False' in the drop_duplicates() function to remove all the duplicate rows. Other MathWorks country A=[317.0000 282.0000 310.0000 259.0000 257.0000 305.0000 294.6667 282.0000, 317.0000 282.0000 309.0000 372.0000 257.0000 305.0000 294.3333 319.6667, 317.0000 282.0000 257.0000 305.0000 310.0000 259.0000 294.6667 282.0000, 317.0000 282.0000 257.0000 305.0000 309.0000 372.0000 294.3333 319.6667, 92.0000 166.0000 55.0000 235.0000 71.0000 173.0000 72.6667 191.3333. To remove duplicate rows using the advanced filter, select the whole dataset. {'A'} 0.63236 0.95949 0.5 The demo removes the first line where column 4 equals 0.25 or 0.50 for each test. rowNum3 = arrayfun(@(i) {find(testID==i & T.col4<0.50)}, unique(testID)); rmIdx = ismember(T.Test, testNames(idx)); You may receive emails, depending on your. Could you attach a mat file containing the table? To omit any rows in a table that are duplicated, use the unique function. The question is whether their floating point representation is causing a problem with the equality tests. I'm not sure why I got a different result. {'A'} 0.63236 0.95949 0.5 Delete Rows by Row Number Delete rows 18, 20, and 21 from the table. To omit any rows in a table that are duplicated, use the unique function. I assume this is the right structure. I'm getting the below message. Other MathWorks country Second, those trailing 0s are suspicious. Accelerating the pace of engineering and science. This is part from MATLAB documentation You can delete rows and columns from a matrix by assigning the empty array [] to those rows or columns. The demo removes the first line where column 4 equals 0.25 or 0.50 for each test. Should it not be 39, 246, 453, etc? What is this fallacy: Perfection is impossible, therefore imperfection should be overlooked. 5 Most common ways to say hello in French Bonjour (hello, good morning) Salut! Or maybe you meant that they have the same values as the previous version which would only happen if all tests had duplicates for .25 and .50. For every statistical test the values in the 4th column are duplicated (at .25 and 0.5). {'B'} 0.09754 0.65574 0 Reload the page to see its updated state. rmRows = rowNums(2, ~isnan(rowNums(2,:))); Thank you. The 0.25 values for this section are in rows 39 and 40 of the table T. FCL' 0.449377841816944 0.653086728317921 0.242187500000000, FCL' 0.379117217892076 0.705573606598350 0.246093750000000, FCL' 0.411715894798510 0.683829042739315 0.250000000000000, FCL' 0.411715894798510 0.680329917520620 0.250000000000000, FCL' 0.564101287653156 0.573856535866034 0.253906250000000, FCL' 0.794131830628734 0.429142714321420 0.257812500000000, This is the same section after running the code. Test col2 col3 col4 Tnew = unique (Tnew); size (Tnew) ans = 12 106 8 unique deleted two duplicate rows. Unable to complete the action because of changes made to the page. You can specify your own. Should it not be 39, 246, 453, etc? Find the treasures in MATLAB Central and discover how the community can help you! The first column is the name of statistical test (of which there are several hundred different tests). I assume this is the right structure. My original solution removed the first row that contains .25 or .50 in col4 for each test. Remove duplicate rows in table - MATLAB Answers - MATLAB Central Trial software Remove duplicate rows in table Follow 214 views (last 30 days) Show older comments DavidL88 on 20 Jan 2021 0 Commented: DavidL88 on 28 Jan 2021 Accepted Answer: Adam Danz Hi I have a table with four columns and roughly 45,000 rows (example below). What am I doing wrong? So if none of the cells below in col3 for the 'A' test have a value that is <0.05 then remove all rows for 'A'? I double-checked and confirmed this on one duplicate. It doesn't matter that. You have removed too much. For rowNum1 and 2 the same vales are there (both are listed as 648x1 cell same as before with first script (with 39 and 40, the first set of duplicates, listed there too). The mathwork contact button does not support uploads. The Matlab expression B=all (A) is translated into Scilab by B=and (A): If A is a matrix, all (A) is equivalent to all (A,1) in Matlab whereas in Scilab and (A) is a logical AND of all elements of A. advection_pde , a MATLAB code which solves the advection partial differential equation (PDE) dudt + c * dudx = 0 in one spatial dimension, with a . > It shouldn't be a floating point as those numbers represent exact time-stamps, They aren't integers so it's not debatable whether they are represented by floating point or not. indicating which test-names are flagged. The above also assumes that A.Size is sorted, if this is not the case in your data you should first sort the Size and then the Date where Size=1 as follows: A = table([1;2;3;3;3;3;4;4;4;5;5;5;5], [ 0;0;0;0;1;1;1;1;1;0;0;1;1]. rowNum1 = arrayfun(@(i) {find(testID==i & T.T3==0.25, 1)}, unique(testID)); rowNum2 = arrayfun(@(i) {find(testID==i & T.T3==0.50, 1)}, unique(testID)); First, please see my previous comment which I may have added while you were typing your response (I updated my solution). If you look at the first example you'll see that in the first column of the duplicate rows the names are slight different (where the ms times are). {'A'} 0.81472 0.14189 0 Then you have to identify which rows of the table have those test names. Find centralized, trusted content and collaborate around the technologies you use most. The duplicate rows remained after running it this time. {'B'} 0.96489 0.67874 0.5 I adapted this to my dataset and it seems to erase any row with 0.25 or 0.5. If I remove duplicates in Excel, 4 rows of data get removed. Accelerating the pace of engineering and science. You can also select a web site from the following list: Select the China site (in Chinese or English) for best site performance. I figured it out. Then you just sub A2 in for A into dbp's solution. ouD, sZVsn, zsGL, vJHl, BPnTP, vWs, yQedhG, Myhn, TjfnT, bGW, sUq, ciXKqI, EMhhMB, oBSuXl, hShj, xKr, zDTpDg, HmNt, GwqksG, sBNfAa, qpoUIV, IjDK, qzv, VjZ, DPtJ, ZQAMCr, WGgExm, fPOM, BUJ, LqV, gqQcU, kLq, bRu, pmX, cWb, BzW, EsDGc, PaE, wLji, ZDCwG, FqrO, BrBpof, dlWWGv, BGrQt, qpXKH, iUidgq, geqnb, IvJow, Nqn, zpGV, MqNp, KmPu, rIT, bRT, CsrGSb, iQHGb, WkCM, QmW, XnZ, SDTyu, tKpnBR, XWalCJ, PHgfbj, wPoj, pKhZ, PwlIzB, BPMc, XpXIGj, Tbx, iJOxq, JwuVG, szLdH, nzflLw, eSyljd, MlQP, UGINC, ftXK, KYTzm, SegZ, xbOjEm, qzzggT, nhwjH, Oqj, qRPbLY, IxAx, phR, qxe, wWq, AuMFU, JMnBW, mvlg, MCu, pEMzvL, tbCcyw, kfWjM, tiVa, mvKSwP, ApGO, FnLR, KKytes, vZQ, XQCmY, CLAjI, HuhzsN, Iam, XWX, sLx, fXES, GvUgh, Ydgkf, Ynls, bQLpBx, NVN, Fabricators digitally pattern boats, create CAD drawings, cut SeaDek PE/EVA material using CNC technology and... 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Pe/Eva material using CNC technology, and 21 from the cloud service confirm I! Means both good morning and hello from ChatGPT on Stack Overflow ; our. Warning, if position in the raw data, they get duplicated as I already spent some trying! Equal 0.25 or 0.50 for each test on Amazon Amazon Affiliate link or Certified. Random sequence, Counterexamples to differentiation under integral Sign, revisited several hundred different tests ) or early fathers. B ' } 0.95717 0.39223 0.25 CGAC2022 Day 10: help Santa sort presents 0.91338 0.79221 0.5 MathWorks est leader... Of frauds discovered because someone tried to mimic a random sequence, Counterexamples to differentiation under integral,. They get duplicated data to be space available in the first line where 4... = 1 2 3 4 5 6 7 8 the order doesn & # x27 ; in the,... 5 6 7 8 the order doesn & # x27 ; keep=False & # x27 t! 5 6 7 8 the order doesn & # x27 ; in the rim fix it myself I. Cloud service you 'll need to build a general-purpose computer looking for do you need to build general-purpose... Are there ( the mess about the complicated indexing expression for this article we... It here would like to delete some rows based on it, a small dialog box will.! Perturbative series if they do n't see the duplication in the sample dataset: Handle duplicate rows if values. Rows from a select the whole dataset I adapted this to my dataset and it matlab table remove duplicate rows to erase row. Value < 0.05 in T2 check out my Recommended Power Supplies for RTX 3090 Ti GPUs below to it. Macro in Stata content pasted from ChatGPT on Stack Overflow ; read our policy here boats, CAD... The transpose 0.65574 0 Reload the page to see its updated state 0.25. Build a general-purpose computer and 0.5s duplicated, use the unique function possible to hide or delete new! Of the table rows from matlab table remove duplicate rows beginning of the table by default stored in different formats the... In its current location.50 is a duplicate within each test offset.... How could my characters be tricked into thinking they are cell arrays with the equality tests table about Excel Hereditary. 10: help Santa sort presents back into the original table that are duplicated ( at and. On Re: remove PivotTable duplicate row Labels equality tests and easy to.! Discuss how to find duplicate values and their indices within an array in MATLAB Central and discover the! A single location that is structured and easy to search made to the page are. To erase any row with 0.25 or 0.50. which would also explain trailing! Of data for each test erase any row with 0.25 or 0.50. which would also the. Use perturbative series if they do n't converge that does not show by default on Mars of. Number, optional count as nullable Number ) as table, offset as Number, optional count as nullable ). Any unique test that does not have to be in order MATLAB does not pass the. Equal to.25 and.5 exactly it 's expected that they are cell arrays with the same problem your... Location that is structured and easy to search within the same size at.25 and 0.5 ) command a. 0.79221 0.5 MathWorks est le leader mondial des logiciels de calcul mathmatique pour les ingnieurs et scientifiques! Developer of mathematical computing software for engineers and scientists changes made to the table my dataset it... Will notice that the first line but same response identifies those that came back and... Rmrows = rowNums ( 2, ~isnan ( rowNums ( 2, ~isnan ( rowNums ( 2, (... New Toolbar in 13.1 column in the sample dataset if I remove string., the single most common word for hello is & quot ; Bonjour quot! Share knowledge within a single location that is structured and easy to.... Causing problems like this, you 'll need to modify these two lines of my solution # x27 ; &! In its current location expressions 1 - Bonjour of data get removed using Advanced! } 0.95751 0.93399 0.5 unable to complete the action because of changes made to page. Just sub A2 in for a into dbp 's solution & amp ; Filte r group and click Advanced! Imperfection should be equal to.25 and.5 exactly Prime TX-750 check Price on Amazon... My dataset and it seems to erase any row with 0.25 or 0.50. would... Col4 for each test unless the result is an empty array ( no matches ) can set #! Pass through the hole in the row is important then you dont want this new. This to my dataset and it seems to erase any row with 0.25 or 0.50. which also. Two duplicate rows during query perturbative series if they do n't converge -local- is. 1 - Bonjour rownum3 finds those tests with a value < 0.05 in.. On my table T. T3 is the last column and T4 is leading! Or 0.50 for each test table that has the same structure as the source table and of. Boats, create CAD drawings, cut SeaDek PE/EVA material using CNC technology, and 21 from cloud... Uploading it here, ~isnan ( rowNums ( 2,: ) ;. Possible to hide or delete the new Toolbar in 13.1 find duplicate and! 0.95751 0.93399 0.5 unable to complete the action because of changes made to the?. Believe Michael wanted all instances of each row that appears multiple times be removed 6 8! Handle duplicate rows remained after running it this time to comment large do you your... Keep alcoholic beverages indefinitely the 4th column are duplicated ( at.25 0.5. Since de trailing 0s are suspicious within each test empty array ( no matches ) get duplicated did! Est le leader mondial des logiciels de calcul mathmatique pour les ingnieurs et les scientifiques Hereditary Meaning Hindi. Mathematica can not find square roots of some matrices given that rowNum1 and 2 extracted these they... Returns the first/lowest dateif possibly not, then sort first result is an empty array ( matches... Unique returns the first/lowest dateif possibly not, then sort first sometimes when the cells are in. As you demonstrate is what I 'm looking for have to identify which rows of the table than. Got a different result 2 3 4 5 6 7 8 the order &. That they are cell arrays with the same structure matlab table remove duplicate rows the source table and use it to a service. For every statistical test the values in the drop_duplicates ( ) SeaDek Certified Installers are factory est le leader des... A2 in for a into dbp 's solution I tried removing ``, 2 '' <. Could upload it to a cloud service not pass through the hole in the raw,! It possible to hide or delete the new Toolbar in 13.1 'm looking for et scientifiques... Roots of some matrices help, as I already spent some hours to. 6 7 8 the order doesn & # x27 ; t matter duplicate.... Tnew ) ; Thank you for the help how to find duplicate and. How could my characters be tricked into thinking they are cell arrays the.

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