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How do I save the output from a double for loop to a vector?
counter = 0; VectorOfValues=zeros(24,1); % preallocate for n = 0:23 for i = 1:height(Exceldata) if (duration(n,0,0...

10 hours ago | 1

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Graphing an array by largest row to smallest row
output_array = {[1,2,3]+0; [1,2,3,4,5]+0.1; [1,2,3,4]+0.2}; [~,ix]=sort(cellfun(@numel,output_array),'descend'); ix=num2cel...

11 hours ago | 0

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How to sorting categorical array for plotting
function male=MakeMaleSample(n) male=categorical("M"+1:n,"M"+1:n); end To force a non-lexical sort order, you have to speci...

16 hours ago | 1

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Place filenames with common pattern in a cell array
C = {'breakpoint_b40_f15.txt', 'breakpoint_b50_f15.txt', 'breakpoint_b40_f20.txt', 'breakpoint_b50_f20.txt', 'breakpoint_b40_f25...

1 day ago | 0

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I am getting "Conversion to logical from table is not possible." error, how do you solve it?
... data1 = readtable('data1.csv'); data2 = readtable('data2.csv'); ... You read a csv file as a table; the two variables ar...

4 days ago | 0

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Subdividing column matrix based on two stored indices of different lengths
A = [0.0048;-0.001;-0.0042;0.0047;-0.00011;0.0025;0;0;0;0;0.0023;0.0004]; order =[4;5;6;7;8;9;1;2;3;10;11;12]; pull = [7;8;9...

5 days ago | 0

Answered
ERA5-Land: error calculating hourly radiation
Seems very peculiar way to have done, but I'd just fix the date and then process by it instead... % Load the NetCDF file ... ...

6 days ago | 0

Answered
Separating text files according to latitude and longitude
Sure. Just read the lat/lon data file, substitute the dot woth underscore and do a dir() with that string in the filename wildc...

6 days ago | 0

Answered
I have a problem regarding an Index because it exceeds array bounds.
It would appear that the X array is 37xN instead of Nx37... BTW, you don't need a loop to compute the difference; diff() is vec...

7 days ago | 0

Answered
How do I group data into different groups based on values of 2 columns for analysis?
fn='/matlabcentral/answers/uploaded_files/1361218/position_velocity%20data.xlsx'; tLC=readtable(fn); ...

7 days ago | 0

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Answered
Why are my line plots are coming out improperly?
Well, there's no "problem" with the nested loop other than apparently it isn't what you intended... :) It iterates through each...

7 days ago | 0

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Answered
How can I properly extract individual filenames, with often times similar naming?
Putting meta-data into the file names is a large part of the issue; but if the files are something other than data files that ar...

7 days ago | 1

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Answered
Matching two array elements by rounding up and down
fn='/matlabcentral/answers/uploaded_files/1359918/data_list.txt'; tT=readtable(fn); ix=isfinite(tT.B)...

8 days ago | 2

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Answered
Can I remove the date from big data set text file?
Not easily, no you can't ignore the date because the file is tab delimited and the date/time is a single string. To ignore it a...

9 days ago | 0

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Answered
Fastest way to search files by pattern name
As far as the original Q?, it's owing to how the underlying OS processes the dir command -- when you ask for a directory listing...

9 days ago | 0

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Answered
How to identify text files with zero value
"...is any way to extract the text files[?]" What do you mean by "extract", precisely? What is the end result you're after; to...

9 days ago | 0

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Answered
Writing txt files accurately with a restriction on the number of columns.
Still with same idea but a little cleaner implementation... %a=randi(200,[1,25]); %fmt=['%d' repmat(',%d',1,numel(a)-1)]; %s=...

9 days ago | 0

Answered
Writing txt files accurately with a restriction on the number of columns.
a=randi(200,[1,25]); fmt=['%d' repmat(',%d',1,numel(a)-1)]; s=sprintf(fmt,a) LL=25; L=strlength(s) O=[]; while L>0 I=st...

10 days ago | 2

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Answered
I have 400 columns of matrix, I want to calculate FWHM. I'm trying find codes related to find peaks, but nothing works. I cannot see the FWHM as 400 different columns.
fn='/matlabcentral/answers/uploaded_files/1356933/ace%20re.xlsx'; data=readmatrix(fn); whos data plo...

11 days ago | 1

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Answered
Extract numbers from matrix based on logical array
x =[ 0.5853 0.2551 0.8909 0.2238 0.5060 0.9593 0.7513 0.6991 0.5472].'; y =logical([ 0 1 1 1 ...

12 days ago | 1

Answered
How to know the range automatically identified by readtable when importing an Excel file?
It will be only as good as the ability of the detectImportOptions bot's ability to recognize the start of the data, but opt=det...

12 days ago | 0

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Answered
I am using writetable for exporting the workspace variables into excel sheet
Read the rest of the doc, specifically the <named parameters for spreadsheets only> section, you'll be particularly interested i...

13 days ago | 0

Answered
How do I create a For loop from a string array that will fill and load h5 files?
I didn't see @Stephen23 had already addressed the main iissue, but had already started, so... d=dir('*Walk.h5'); for i = 1:num...

13 days ago | 0

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Answered
Converting table data to datetime
tbldata=readtable('pipe2_st.csv'); tbldataarray=table2cell(tbldata); Don't convert the table to a cell array, use the table yo...

14 days ago | 0

Answered
Changing step tolerance for lsqcurvefit
opt=optimoptions('lsqcurvefit'); opt.StepTolerance=1E-8 in your code above ... Dab = lsqcurvefit(@f, x0, t, c) % fitting Dab...

14 days ago | 0

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Answered
Why is FFT result divided by NFFT instead of the root of NFFT?
Well, let's try it and see... Fs = 1000; % Sampling frequency T = 1/Fs; % Sampling period L = 1500; ...

14 days ago | 1

Answered
Find the average between each pair of points in a matrix
I'd do it as z=randi([-5 5],8) za=filter2(ones(2)/4,z) % averaging 2D filter with same size as input (zero padded) zv...

14 days ago | 1

Answered
Array rows differences and array filling in a loop
The cell array @Jon shows is simpler to code and what first strikes, but the answer to the Q? as you posed it to store into the ...

15 days ago | 1

Answered
How do I edit this bar graph so that the weights appear equally distanced on the x-axis with 4 bars for each weight, all of different colour.
The weights vector is 'x' There are examples of grouped bar plots at the doc page...sorry, I said 'stacked' before; that's what...

16 days ago | 0

Answered
Fit a equation to a scatter plot in log log scale with the given parameters
fn='/matlabcentral/answers/uploaded_files/1350879/Data_1.xlsx'; A=readmatrix(fn); x=A(:,1); y=A(:,2)...

16 days ago | 0

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