How to replace two columns in a txt file?

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Benson Gou 2020-9-25

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评论： Sudhakar Shinde 2020-9-30

采纳的回答： Sudhakar Shinde

Dear All,

I have a txt file which contains strings and numerical columns. Here are some samples of this txt file:

3 'CHSTRSVC' 345.00 2 0.00 0.00 1 1 1.0269 -11.382 1

4 'ORRINGTN' 345.00 1 0.00 0.00 1 1 1.0191 -16.365 1

3146 'ORRINGTN' 345.00 1 0.00 0.00 1 1 1.0162 -13.797 1

3147 'ORRINGTN' 345.00 1 0.00 0.00 1 1 1.0179 -13.586 1

......

I want to replace the values in the last 2 columns with updated values, and save the updated values in the same txt file. So the txt file has only two columns updated. For example, in the first row, I want to replace 1.0269 with 0.9987 and -11.382 with -10.5634.

Is there a simple way to do it?

Thanks.

Benson

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Sudhakar Shinde 2020-9-28

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在 MATLAB Online 中打开

This could help you:

fid = fopen('test.txt');
C = textscan(fopen('test.txt'),'%s','delimiter','\n');
C=strrep(C{1}, '1.0269','0.9987');
C=strrep(C, '-11.382','-10.5634');
fid = fopen('test.txt','w');