Way to get rid of updates in command history during curve fitting

Hi all,

I am writing a code, which will automatically load many waves and fit each of them with a function. It is working fine. My problem is that every time it fits with the given function it updates the fitted coefficients and standard deviations in the command history window. I do not want it as it unnecessarily make the command history long and make the program slow and these parameters are anyway saved in coefficient waves. Anyone's help in this is highly appreciable.

Thank you

Best regards,
SJ