Don't let the function display any output

Hello guys,

I have a function which I can't access to the code and so, I can't change anything within the function. The problem is that the function is printing in the command window every time. How can I prevent that function to print without getting inside the function? I've of course already tried ; after calling it.

Thank you!

[Stephen23]

@ben dp: point out to whomever wrote that code that uncontrolled printing to the command window is an insult to humanity, slows the code, irritates the user, and is ultimately useless because no one can understand five hundred lines a second of scrolled text.

Answer 1

[Guillaume]

You could wrap the call to the function in evalc. The downside, as with any eval function is that it is slower and you lose syntax highlighting.

Probably best is to live with the output to the command window.

[ben dp]

No, the objective of stop displaying the output is to win processing time. That display is really making me loose to much time. If using evalc will make me loose more time, then it is not the good solution :\ but thank you!

[Walter Roberson]

evalc() has to keep allocating memory as the computation goes on. That can be lead to slowness.

On the other hand, displaying data to the command window is typically slower than allocating memory is.

[ben dp]

Ok but then now the problem is that I need the memory. I have very huge data to classify in my SVM :/ Anyway, I was gonna try the evalc like this :

evalc('vl_hog(single(imgExtended(l-8:l+7,c-4:c+3,:)), 8, 'verbose','numOrientations', numOrientations);')

But is not working because of the ' in my function.

If you have any other solutions, they are welcome

[Steven Lord]

>> disp('Here''s how to include a quote in a char vector')

[Walter Roberson]

Also remember you can assign those strings to variables and pass the variables.

[ben dp]

Disp is to display in the command window, but that's not what I want to do. Or I didn't understand your idea...

[Walter Roberson]

evalc('vl_hog(single(imgExtended(l-8:l+7,c-4:c+3,:)), 8, ''verbose'',''numOrientations'', numOrientations);')

Answer 2

[Rafi egal]

you could use clc if you have no terminal output above which is to be used.

Maybe you can temporarily disable warnings before calling the function and after goint out of that function enable them once again: https://ch.mathworks.com/help/matlab/matlab_prog/suppress-warnings.html