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How to find the frequency of unique rows in 3 columns of a table?
Var1 = {'Car';'Dog';'Car';'TV';'TV';'TV';'Car'} Var2 = {'red';'blue';'red';'green';'yellow';'green';'red'}; Var3 = {'X';'Y'...

6 years 前 | 0

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Delete zero rows from a table
For a table named t: t(~t.speed,:) = []

6 years 前 | 1

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Extracing the part of the string from cell array
regexp(a,'(?<=__)(.*)','match')

6 years 前 | 2

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Find string in excel file
text = {'T_DCT_PK_WDT_W01B1_RANGE'; 'T_DCT_PK_WDT_W01B2_RANGE'; 'T_DCT_PK_WDT_W02B1_RANGE'; 'T_DCT_PK_WDT_W02B2_RANGE'} ...

6 years 前 | 0

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Populate cell array dynamically
ssnname = {'D1S02';'D3S11';'D3S12'} ssnend = [10 20 24] ssnend = num2cell([ssnend(1) diff(ssnend)]) output = cellfun...

6 years 前 | 0

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I'm not sure why what I wrote isn't working in terms of extracting the string I want.
filename = 'Synch_ab001.mat'; subjectname = regexp(filename,'(?<=_)(.*)(?=\.\w*)','match')

6 years 前 | 0

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Hey guys, i need help with vector maniuplation
v = -3:1:3 w = v w(w<0) = w(w<0)*2

6 years 前 | 1

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Vector with various IFs, adding up and counting down
X = [ 5 2 -4 -6 -2 1 4 2 -3 -6 -1 8 9 ]; indx = find(X<0); Y = [zeros(1,indx(1)-1) cumsum(X(indx(1):end))]; Y(Y>0) = 0; ...

6 years 前 | 0

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How do I Subscript Duration Row times with Date Time values?
opts = detectImportOptions('QuakeTrials.csv'); opts.MissingRule = 'omitvar'; T = readtable('QuakeTrials.csv',opts); T.D...

6 years 前 | 0

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Extracting a number from certain line of .txt file
For the values which follow "COLLAPSE MULTIPLIER = ", you can simply use a positive lookbehind which checks for the pattern you ...

6 years 前 | 0

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Excluding one vector from another vector with repetition
S=[1 3 0 2 0 0]; C=[0 2]; [~,col] = ismember(C,S); S(col) = []; S = 1 3 0 0

6 years 前 | 2

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Selecting points from a matrix
x = [9,10,3,2,6;3,1,7,8,10]; x = 9 10 3 2 6 3 1 7 8 10 x(x<9 | x>10) = 0; ...

6 years 前 | 0

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Convert part of a string to number
You can use <https://uk.mathworks.com/help/matlab/ref/regexp.html regexp> to simply match the digits in your input. NA = reg...

6 years 前 | 0

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已解决

Remove any row in which a NaN appears
Given the matrix A, return B in which all the rows that have one or more <http://www.mathworks.com/help/techdoc/ref/nan.html NaN...

6 years 前

已回答
Removing specific characters from string in nested cells
Perhaps this can easily be achieved in two steps. For your input: 1 ****TABLE1**** COLUMN1= 1.12, 2.23, 3.34, 4.45,...

6 years 前 | 0

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Extracting parts of a string
The following code uses <https://uk.mathworks.com/help/matlab/ref/regexp.html regexp> to extract the data you want. You can play...

6 years 前 | 0

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How can I get successive difference and later add all the difference?
x = [735954.715277778 735954.716412037 735954.717766204 735954.717824074 735954.717916667 735954.863611111 735955.043206019 735...

6 years 前 | 1

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If I have file names listed in a readtable how do I get it to extract part of the file name?
You have two options for extracting that data. The first is the simplest one. Since you said that that information always occu...

6 years 前 | 0

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Remove rows with NaN from a table
Use <https://uk.mathworks.com/help/matlab/ref/rmmissing.html rmmissing> : T = table([38;43;38;40;49],[71;NaN;64;67;64],[176...

6 years 前 | 3

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How to read a data from txt file: only a specific part of txt
You can use <https://uk.mathworks.com/help/matlab/ref/regexp.html regexp> to match the sampling value. The expression below assu...

6 years 前 | 0

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Extracting a file path from a .txt file
You can use <https://uk.mathworks.com/help/matlab/ref/regexp.html regexp> to match the path in your .txt file. corr = filere...

6 years 前 | 0

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Reading, finding and storing the lines from comma-separated text file into a matrix
The best way to parse your .txt file is probably <https://uk.mathworks.com/help/matlab/ref/regexp.html regexp>. corr = filer...

6 years 前 | 0

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Remove text from a text file without otherwise altering the file
You can use <https://uk.mathworks.com/help/matlab/ref/regexprep.html regexprep> for this purpose. x1 = 'G1 X104.650 Y95.350 ...

6 years 前 | 0

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Extract specific rows or columns containing letters (xxx) From dat File in Matlab
The code below reads the xlsx file as a table |t| using <https://uk.mathworks.com/help/matlab/ref/readtable.html readtable> and ...

6 years 前 | 0

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How do i get thindex of the rows where 'NaN' elements are there in a cell array?
Find the rows where NaN occurs, with "a" being your cell array: [row,~]= find(cell2mat((cellfun(@(x) any(isnan(x)),a,'un',0...

6 years 前 | 0

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how can remove words and split in cellarray in matlab
*For input*: x = {'100614,Peter Beadle,131542'} You can use <https://uk.mathworks.com/help/matlab/ref/regexp.html regexp>...

6 years 前 | 1

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Getting the minimum distance in a coordinates array
Your input: x = [938;810;147;1162;494;383;203]; y = [845;1012;875;810;1039;897;1010]; Sort x: [tmpx,i] = sort(x); ...

6 years 前 | 0

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How do I delete specific elements from a matrix?
Tijdgoed((Tijdgoed > 10 | Tijdgoed <-10)) = []; You can confirm by using: find(Tijdgoed>10) find(Tijdgoed<-10) wh...

6 years 前 | 1

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How can i Replace missing values from Timetable
Input timetables: tt1: Time Var1 ___________ ____ 13-Apr-2018 30.1 25-Apr-2018 NaN...

6 years 前 | 0

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Color of plots when there are multiple plots
Since you specified that you do not wish to specify the color manually, you can use: plot(Date,A,'Color',rand([1 3])) To ...

6 years 前 | 0

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