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 ... ...

3 years 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...

3 years ago | 0

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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...

3 years ago | 0

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

3 years 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...

3 years 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...

3 years ago | 1

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

3 years 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...

3 years 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...

3 years 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...

3 years 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=...

3 years ago | 0

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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...

3 years 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='https://www.mathworks.com/matlabcentral/answers/uploaded_files/1356933/ace%20re.xlsx'; data=readmatrix(fn); whos data plo...

3 years 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 ...

3 years ago | 1

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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...

3 years 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...

3 years ago | 1

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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...

3 years 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...

3 years ago | 0

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

3 years 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; ...

3 years 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...

3 years 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 ...

3 years 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...

3 years ago | 0

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

3 years ago | 0

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.
Use X as a vector as categorical (or if numeric, use 1:N and then write the x tick labels with the desired values for display), ...

3 years ago | 0

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How can I pass a large function into ODE45?
Write your function as an m file and pass a handle to it; don't try to do stuff in scripts or complicated stuff as anonymous fun...

3 years ago | 1

Answered
Extract matching row from another cell array
Air code; the load operation didn't work online... >> load all_files >> pieces=split(extractBefore(all_files,'.'),'_'); Error...

3 years ago | 0

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Answered
how to find the location of a specific element in a matrix or in a excel file
What do you mean "to find the location of each element"? You mean just read the file, don't you; the location is really of very...

3 years ago | 0

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Answered
How I can find a specific word in a notepad text?
"i want to find the word " lege" in the document and then to count how mnay times apear this specific word" txt=readlines('your...

3 years ago | 2

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Answered
Matlab App Designer - Output to TextArea Error - 'Value' must be a character vector, or a 1-D array of the following type: cell array of character vectors, string, or categori
app.ClassificationTextArea.Value{i+1} = classification; tries to address the .Value property as a cell array which it doesn't s...

3 years ago | 0