Input/Outputting values

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How do I input and output values to a txt. file using MATLAB

Thanks

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Answer 1

Dvir Haberman 2019-5-14

编辑：Dvir Haberman 2019-5-14

1 个投票

Hi,

Use fopen and fclose to handle these files.

use fopen to get the file id (pay that in case of failure fileID will be -1 )

Read the full info in this link.

shortly:

Premission 'r' to read and 'w' to write.

fileID = fopen(fullfilename,'r')
if(fileID!=-1)
%     do something. use fgetl 
end

Then I usually use fgetl to process every line and status feof to know if the file ended but there are more ways of course.

while ~feof(fileID)
    tline(k) = fgetl(fileID)
end

dont forget to close the file afterwards

fclose(fileID)

After that when you want to write to a file open it with the 'w' permission and use fprintf to write to a file

fprintf(fileID,formatSpec,A1,...,An)

Again, remember to close the file when you're done with fclose

Hope this helps