Effect of normalization

[simsong]

From @sabu3 on March 4, 2016 9:27

When I use L1R_LR, a discrimination ratio changes depending on a normalization method.
I tried two normalization method.

1. Centering(Subtract average from each data)
   Quick implementation, but discrimination ratio is below.
2. Normalize data with N(0,1).
   Long implementation, but discrimination ratio is higher than 1.

I read the program, but I did not find a reason.

Copied from original issue: cjlin1#19