How to save a text file to a .mat file?

Question

How do I save a '.txt' file as a '.mat' file, using either MATLAB or Python? I tried using textscan() (in MATLAB), and scipy.io.savemat() (in Python). Both didn't help.

My text file is of the format: value1,value2,value3,valu4 (each row) and has over 1000 rows.

Appreciate any help is appreciated. Thanks in advance.

score 3 · Answer 1 · answered Nov 08 '18 at 08:16

3

You can use textscan to read the file and save to save the variables into a .mat file

fid = fopen('yourTextFile.txt');
C = textscan(fid,'%f %f %f %f');
fclose(fid);
% maybe change the cells from `C` to a single matrix
M = cell2mat(C);
save('myMatFile.mat','M');

This works because your file seems to have a fixed format. Have a look at this and this

answered Nov 08 '18 at 08:16

user7431005

3,899
4
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When I run this, I get the following error:Error using cat Dimensions of matrices being concatenated are not consistent. Error in cell2mat (line 75) m{n} = cat(2,c{n,:}); – Dr. Strange Nov 08 '18 at 17:17
Can you please give more information about the content of your file and the dimension of each cell in `C`. – user7431005 Nov 08 '18 at 21:07

score 1 · Answer 2 · answered Nov 09 '18 at 20:14

1

I was able to get it to work using csvread() as follows:

file = csvread('yourTextFile.txt');
save('myMatFile.mat','file');

answered Nov 09 '18 at 20:14

Dr. Strange

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11

score -3 · Answer 3 · answered Nov 08 '18 at 08:21

-3

if what you need is to change file format: mv example.mat example.txt

answered Nov 08 '18 at 08:21

liaofeng

82
6

How to save a text file to a .mat file?

3 Answers3