title: Pre-processing data: Normalizing data labels in regression?
body: <p>Recently I was told that the labels of regression data should also be normalized for better result but I am pretty doubtful of that. I have never tried normalizing labels in both regression and classification that's why I don't know if that state is true or not. Can you please give me a clear explanation (mathematically or in experience) about this problem? </p>
  
  <p>Thank you so much. 
  Any help would be appreciated.</p>