Exporting data to CSV file

Question

Neesha 2013-12-30

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/111063-exporting-data-to-csv-file

评论： Mohammad Farhad Aryan 2020-3-10

采纳的回答： Neesha

在 MATLAB Online 中打开

Hi Friends, I am getting my output in CSV file as follow:

export(output,'file', char(qtrOutput),'Delimiter',',');

It has about 88000 rows.

My program works fine when i test it with small data say 200 rows. But when i run with my actual data which results into 88000 rows, it gets stalled on above mentioned code.

Now I thought may be i have too many rows but i waited like 10 minutes and it still does not come out. I go and open output file where I am writing in while program is still stalled , it has all the data.

I fail to figure why?

Please help and let me know what more info u need

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Priya Natarajan 2013-12-31

you can write your data to a CSV file using csvwrite(filename,M)

ES 2013-12-31

you could use dlmwrite or csvwrite or xlswrite instead. ActiveX server is even faster!!!

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Answer 1

Neesha 2014-2-24

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https://ww2.mathworks.cn/matlabcentral/answers/111063-exporting-data-to-csv-file#answer_125932

Thanks all for the comments and suggestion. I was able to resolve problem by deleting old output and after that my export did not have an issue. Not sure why that old file was getting on way of new export.

I have not tried other options you have suggested hence not able to mark anything as answer

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Answer 2

AMITH P C 2017-11-22

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https://ww2.mathworks.cn/matlabcentral/answers/111063-exporting-data-to-csv-file#answer_292632

How to convert .mat file into csv file

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Mohammad Farhad Aryan 2020-3-10

在 MATLAB Online 中打开

Use the following code.

load('filename.mat');
writematrix(filename, 'newfilename.csv');

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