MATLAB: Fprintf repeat

fprintfrepeatsubfunctionvariable

Hey I'm trying to do something… and I don't know if it's possible :s

I'm currently drawing on subfunctions and showing the result via fprintf, however I want to simplify it if I can.

If my code has the following;

fprintf('My results are %.5f and %.5f' f(x), (f(x)/2))

Is there anyway to avoid having to state "f(x)" twice? I know I could define it earlier by something like "a = f(x)" and then have the fprintf have "a, a/2" but I want to keep as much of the code as I can in the fprintf.

Is there any way I can do this? I would assume not, but MATLAB has supprised me before!

I appretiate the help and if any more details are needed just ask 🙂

Best Answer

fprintf('My results are %.5f and %.5f', f(x)./[1, 2])

Hey, it's not a better solution but it meets your requirements.

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MATLAB: How to vectorize writing to a txt file

You could go for something like this:

 buffer = sprintf('(%f,%f),', [time; signal]) ;    % FormatSpec repeated.
 buffer(end) = [] ;                                % Remove extra ','.
 fid = fopen('output.txt', 'w') ;
 fwrite(fid, buffer) ;
 fclose(fid) ;

MATLAB: Using fprintf to print in text file

Hey Sung,

Instead of printing a fixed number of spaces with ' ', you may set the total width of your value in the format string like this:

sprintf('%10.2f %10.2f', 120, 120) %Each value of 120 is displayed with total width 10 and precision 2.

Use '%w.2f' to set the width of the display value to 'w', which would fill in empty spaces as required.

This would align values in a column on the rightmost digit.

[I used 'w' to illustrate only. You can't use a variable this way, you will need to replace 'w' with your required number, say '%15.2f' or '%20.2f']

[sprintf and fprintf both work the same way, I used sprintf just to demonstrate]

Hope it helps!

Best Answer

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