Error while using writematrix to save complex values in a .txt

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Ragini Bakshi 2019-12-4

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https://ww2.mathworks.cn/matlabcentral/answers/494870-error-while-using-writematrix-to-save-complex-values-in-a-txt

评论： XYC 2022-1-9

Hello, I have a very basic script that reads in around 15000 complex values from a .csv file, does some basic data manipulation and saves it into a .txt file using writematrix. However, it seems the values with a negative imaginary component (i.e. in the form of a-bi) are being saved into the .txt as a+-bi. Calling a readmatrix on this file saves these values as NaN and I cannot proceed. Any ideas? A segment of the code follows along with the exported file values.

%% 1. .csv file to table to array
%% 2-4: Modify values by basic division, rss, etc
%% 5. Export data
writematrix(signal_d_prime, 'signal_modified.txt', 'Delimiter', ' ')
%% Check
readmatrix('signal_modified.txt')

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Jeremy 2019-12-4

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编辑：Jeremy 2019-12-4

csvwrite

Does this correctly. I will look into writematrix

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Jeremy 2021-5-26

编辑：Jeremy 2021-5-26

What version of MATLAB are you using? The issue with writematrix described in this post was fixed in R2020b. If you are using an older version I would recommend updating. If you are using a recent version and still running into an issue I would recommend making a separate question post.