Converting Table with matrices to CSV

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Eren
Eren 2022-12-5
回答： Eren 2022-12-5
Hi,
I have been trying to convert a .mat file to .csv, but the table I've been working with has {nxm double} matrices in it.
I tried the 'writetable()' function, but it "one-hot encodes" the whole thing.
For example when I run it I get:
title data
_____________ ___________________
"A" {2×4 double }
"B" {5×4 double }
"C" {2×4 double }
"D" {[000 001 002 003]}
"E" {[004 005 006 007]}
but, the .csv file splits the matrix into "data_1", "data_2" ... "data_n".
I also tried using:
writetable(X,'X_test.csv','Delimiter',',','QuoteStrings',true)
type 'X_test.csv'
to write the matrix as a string, but it didn't make a difference.
I want the output of the matrices to be like python lists, for example, for a {2x4 double} matrix:
[[734, 234, 987, 174], [193, 297, 379, 222]]
or any other way where it is not split into different columns.
Thanks in advance!

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采纳的回答

Eren
Eren 2022-12-5
Ok, I found a solution. It doesn't convert it to csv, it converts it to json, which I can converted to csv in python.
Thanks to @Walter Roberson and this thread.
js = jsonencode(Table)
T=['x=2;',newline,'y=3;',newline,'z=x*y;'];
filename = 'myTextFile.json';
fid = fopen(filename,'w');
fprintf(fid,'%s',js);
fclose(fid);
open(filename)

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