MATLAB: Export Structure to csv file

csvMATLABstructures

Hi everyone,

I'm trying to export my data which is saved in a structure to a csv file. The structure is two dimensional but contains vectors in some cells. So far I tried to convert it in a table and save it using writetable, but the vectors were not recorded correctly.

Thanks for any advice,

Kathrin

Best Answer

MATLAB just introduced writestruct(): https://www.mathworks.com/help/matlab/ref/writestruct.html in R2020b. If you have R2020b, you can directly write the struct in a text file.

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Use the following option to disable the variable names in the first row

writetable(table, 'test.csv', 'WriteVariableNames', 0)

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Method 1:

input =       readcell('input.txt').'; % read as cell, NaN won't be an issue here
inputStruct = cell2struct(input(2:end, :), input(1,:), 2); % use first row as field names

Method 2 (if you still insist in using readtable):

input = readtable('input.txt', 'ReadRowNames', true); % if still getting NaN, try setting 'TextType' to 'string'
input = rows2vars(input); % rotate the table
input.(1) = []; % discard OriginalVariableNames
inputStruct = table2struct(input, 'ToScalar', true); % a scalar struct

Best Answer

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MATLAB: Removing “VarName” row when exporting table to csv

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