Matlab fprintf % usage in output data

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SUMMARY

The forum discussion centers on the use of the fprintf function in MATLAB for outputting data, specifically the correct method to include the "%" symbol in text files. Users encountered errors when attempting to print the "%" character, as it is interpreted as a format specifier by fprintf. The solution provided is to use "%%" to correctly output the "%" symbol. This method allows users to include header comments in their text files that MATLAB will ignore when reading the data back.

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karna87
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Matlab fprintf "%" usage in output data

I want to save data into a textfile, but I will again need MATLAB to read that text file, in which
case, I would like to have my header-text of the data table begin with '%"
so that when I am reading from than file, MATLAB will ignore header.

I am getting error in doing so. Can somebody please help me ?

thank you !
 
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If I understand correctly, you are encountering an error when trying to print the % symbol using fprintf. That is because % has a special meaning to fprintf. It is used for formatting numbers. If you want to print the symbol itself, you have to put %% instead of %. Example:

fprintf(fid, '%% this is a comment\n');
 


Perfect ! this did help me. I Was trying to print "%". and %% is the solution thanks again
 

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