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How can I create a cell array by combining arrays?
What are you having trouble with? The code you posted works. >> cellArray={['X','Y','Z'],[1 2 3],[4 5 6],[7 8 9]} c...
How can I create a cell array by combining arrays?
What are you having trouble with? The code you posted works. >> cellArray={['X','Y','Z'],[1 2 3],[4 5 6],[7 8 9]} c...
約9年 前 | 1
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Using save with -v7.3 takes a long time and the mat file size is enormous
I've run into this before too. From the <https://www.mathworks.com/help/matlab/import_export/mat-file-versions.html matfile> pag...
Using save with -v7.3 takes a long time and the mat file size is enormous
I've run into this before too. From the <https://www.mathworks.com/help/matlab/import_export/mat-file-versions.html matfile> pag...
約9年 前 | 1
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How do I get Matlab to recognise a text file as numerical values when importing it ?
Check out the <https://www.mathworks.com/help/matlab/ref/textscan.html#inputarg_formatSpec |formatSpec|> portion of the textscan...
How do I get Matlab to recognise a text file as numerical values when importing it ?
Check out the <https://www.mathworks.com/help/matlab/ref/textscan.html#inputarg_formatSpec |formatSpec|> portion of the textscan...
約9年 前 | 0
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how to get the specific member data from a struct array?
From the doc on <https://www.mathworks.com/help/matlab/ref/struct.html |struct|> "When you access a field of a nonscalar stru...
how to get the specific member data from a struct array?
From the doc on <https://www.mathworks.com/help/matlab/ref/struct.html |struct|> "When you access a field of a nonscalar stru...
約9年 前 | 0
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Can anybody help me in writing MATLAB code?i have an .xls file of 2950 sequence .i want a function to read my file and select sequence 1,11,21,31 and write it on another new .xls file, then select 2,12,22 and similarly uptill 10,20,30...etc
% Pseudocode T = readtable('file.xlsx'); for ii=1:10 rows = ii:10:height(T); writetable(T(rows,:), ['fil...
Can anybody help me in writing MATLAB code?i have an .xls file of 2950 sequence .i want a function to read my file and select sequence 1,11,21,31 and write it on another new .xls file, then select 2,12,22 and similarly uptill 10,20,30...etc
% Pseudocode T = readtable('file.xlsx'); for ii=1:10 rows = ii:10:height(T); writetable(T(rows,:), ['fil...
約9年 前 | 0
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predict data for input
Have you tried <https://www.mathworks.com/help/stats/compactclassificationdiscriminant.predict.html |predict()|>? results =...
predict data for input
Have you tried <https://www.mathworks.com/help/stats/compactclassificationdiscriminant.predict.html |predict()|>? results =...
約9年 前 | 0
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I'm trying to create a loop in which i can extract 4 columns and multiple rows from 18 difference txt files and save the extracted data in one file. Is this possible? This is my code from one file
Untested, but this should basically work. Get an array of filenames with <https://www.mathworks.com/help/matlab/ref/ls.html?s_ti...
I'm trying to create a loop in which i can extract 4 columns and multiple rows from 18 difference txt files and save the extracted data in one file. Is this possible? This is my code from one file
Untested, but this should basically work. Get an array of filenames with <https://www.mathworks.com/help/matlab/ref/ls.html?s_ti...
約9年 前 | 0
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How can I make a random array with values of either -1 or 1?
You can use rand % pseudo code x = rand(50,1); pos = x >= .5; neg = x < .5; x(pos) = 1; x(neg) = -1; ...
How can I make a random array with values of either -1 or 1?
You can use rand % pseudo code x = rand(50,1); pos = x >= .5; neg = x < .5; x(pos) = 1; x(neg) = -1; ...
約9年 前 | 0
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I'm doing iteration of credit card. In it, there are looping of month ,balance, and pay every month . How to plot graph with these three variable as the value changes everytime looping happen . Thanks
Don't try and plot it everytime it changes. Store the elements in vectors and plot those at the end.
I'm doing iteration of credit card. In it, there are looping of month ,balance, and pay every month . How to plot graph with these three variable as the value changes everytime looping happen . Thanks
Don't try and plot it everytime it changes. Store the elements in vectors and plot those at the end.
約9年 前 | 0
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How to remove corrupted data lines from text file
Add a NameValue pair of <https://www.mathworks.com/help/matlab/ref/textscan.html#namevaluepairs CommentStyle>. e.g., C = t...
How to remove corrupted data lines from text file
Add a NameValue pair of <https://www.mathworks.com/help/matlab/ref/textscan.html#namevaluepairs CommentStyle>. e.g., C = t...
約9年 前 | 0
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How to set names to column vectors?
If you want to associate a variable name with a piece of data I think your best bet is to use a <https://www.mathworks.com/help/...
How to set names to column vectors?
If you want to associate a variable name with a piece of data I think your best bet is to use a <https://www.mathworks.com/help/...
約9年 前 | 1
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How to speed up a for loop ?
Are you sure this is correct? angle=asin(A(:,3))/(sqrt(A(:,3).^2+A(:,2).^2+A(:,1).^2)); That's doing matrix division. In...
How to speed up a for loop ?
Are you sure this is correct? angle=asin(A(:,3))/(sqrt(A(:,3).^2+A(:,2).^2+A(:,1).^2)); That's doing matrix division. In...
9年以上 前 | 2
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How to find which column consists character 'example' in cell c{1,2}(:,1)
strcmp(c{1,2}(:,1), 'example') will return a logical array. You may need to surround 'example' with |cellstr()|, I can't re...
How to find which column consists character 'example' in cell c{1,2}(:,1)
strcmp(c{1,2}(:,1), 'example') will return a logical array. You may need to surround 'example' with |cellstr()|, I can't re...
9年以上 前 | 0
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how to convert minute rainfall to daily rainfall with missing value?
This assumes you can get the data into the tables you want. Here is a way if you have data in one station per file. ds = da...
how to convert minute rainfall to daily rainfall with missing value?
This assumes you can get the data into the tables you want. Here is a way if you have data in one station per file. ds = da...
9年以上 前 | 0
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Replace a missing string in a table
This should work: dblVar = [NaN; 3; 7; 9]; cellstrVar = {'one'; 'three'; ''; 'nine'}; categoryVar = categorical({''; ...
Replace a missing string in a table
This should work: dblVar = [NaN; 3; 7; 9]; cellstrVar = {'one'; 'three'; ''; 'nine'}; categoryVar = categorical({''; ...
9年以上 前 | 1
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How to process multiple txt files in a loop?
Get an array of file names and loop over that array. e.g., files = ['file1.txt' 'file2.txt' 'file3.txt']; for ii = 1:nu...
How to process multiple txt files in a loop?
Get an array of file names and loop over that array. e.g., files = ['file1.txt' 'file2.txt' 'file3.txt']; for ii = 1:nu...
9年以上 前 | 3
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How do I calculate a mean value of a vector and ignore from the "0" when appears inside the vectors?
Replacing the 0s with NaN and using the 'omitnan' flag should do what you want. >> A A = NaN NaN...
How do I calculate a mean value of a vector and ignore from the "0" when appears inside the vectors?
Replacing the 0s with NaN and using the 'omitnan' flag should do what you want. >> A A = NaN NaN...
9年以上 前 | 0
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How can i rotate Confusion Matrix?
ax = gca; ax.XAxisLocation = 'top'; You can also do this with the set command, but I think the above is more clear.
How can i rotate Confusion Matrix?
ax = gca; ax.XAxisLocation = 'top'; You can also do this with the set command, but I think the above is more clear.
9年以上 前 | 0
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Merge Date and Time in Tall Tables
Try adding them together. <https://in.mathworks.com/help/matlab/matlab_prog/compute-elapsed-time.html Examples>.
Merge Date and Time in Tall Tables
Try adding them together. <https://in.mathworks.com/help/matlab/matlab_prog/compute-elapsed-time.html Examples>.
9年以上 前 | 0
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Extract values from single data matrix
Take a look at <https://www.mathworks.com/help/matlab/ref/horzcat.html |horzcat|> and <https://www.mathworks.com/help/matlab/ref...
Extract values from single data matrix
Take a look at <https://www.mathworks.com/help/matlab/ref/horzcat.html |horzcat|> and <https://www.mathworks.com/help/matlab/ref...
9年以上 前 | 0
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How can I count frequency in array?
<https://www.mathworks.com/help/matlab/ref/fprintf.html |fprintf|> prints to a file. You want to use <https://www.mathworks.com/...
How can I count frequency in array?
<https://www.mathworks.com/help/matlab/ref/fprintf.html |fprintf|> prints to a file. You want to use <https://www.mathworks.com/...
9年以上 前 | 2
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find the matching strings in tables
You can use <https://www.mathworks.com/help/matlab/ref/regexp.html |regexp|>. a = 'Country1-Area1,CityA-52'; expression ...
find the matching strings in tables
You can use <https://www.mathworks.com/help/matlab/ref/regexp.html |regexp|>. a = 'Country1-Area1,CityA-52'; expression ...
9年以上 前 | 0
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help! writing afunction for isprime
Do you know how to test whether a number is prime? Here is one way you can start: # Generate numbers between 2:(n/2) # Test ...
help! writing afunction for isprime
Do you know how to test whether a number is prime? Here is one way you can start: # Generate numbers between 2:(n/2) # Test ...
9年以上 前 | 0
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How to read images in a folder
You can try <https://www.mathworks.com/help/matlab/ref/imagedatastore-object.html |ImageDatastore|>
How to read images in a folder
You can try <https://www.mathworks.com/help/matlab/ref/imagedatastore-object.html |ImageDatastore|>
9年以上 前 | 1
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How convert date and time to number that excel will recognize the really date and time?
Use <https://www.mathworks.com/help/matlab/ref/datetime.html |datetime|> and <https://www.mathworks.com/help/matlab/ref/writetab...
How convert date and time to number that excel will recognize the really date and time?
Use <https://www.mathworks.com/help/matlab/ref/datetime.html |datetime|> and <https://www.mathworks.com/help/matlab/ref/writetab...
9年以上 前 | 0
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Find index with multiple condition, using find function
The first thing I would try is to be more liberal with your use of parenthesis. In your statement: index = find(datachunk...
Find index with multiple condition, using find function
The first thing I would try is to be more liberal with your use of parenthesis. In your statement: index = find(datachunk...
9年以上 前 | 5
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How I can eliminate days with incomplete hours?
You can do this with <https://www.mathworks.com/help/matlab/ref/findgroups.html |findgroups()|> and <https://www.mathworks.com/h...
How I can eliminate days with incomplete hours?
You can do this with <https://www.mathworks.com/help/matlab/ref/findgroups.html |findgroups()|> and <https://www.mathworks.com/h...
9年以上 前 | 0
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Error installing Python on Matlab
Assuming that you're trying to execute the python command this won't work: cd "matlabroot\extern\engines\python" python...
Error installing Python on Matlab
Assuming that you're trying to execute the python command this won't work: cd "matlabroot\extern\engines\python" python...
9年以上 前 | 0
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Applying function to cell array
Define a <https://www.mathworks.com/help/matlab/matlab_prog/creating-a-function-handle.html function handle> and use that as an ...
Applying function to cell array
Define a <https://www.mathworks.com/help/matlab/matlab_prog/creating-a-function-handle.html function handle> and use that as an ...
9年以上 前 | 0
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How can I remove elements divisible by 3,4, and 5 in a vector?
You can do this using <https://www.mathworks.com/help/matlab/ref/mod.html |mod()|>.
How can I remove elements divisible by 3,4, and 5 in a vector?
You can do this using <https://www.mathworks.com/help/matlab/ref/mod.html |mod()|>.
9年以上 前 | 0
