On 9/4/07, Roelof Brouwer <[EMAIL PROTECTED]> wrote: mean=:+/%# variance=: (mean@:*:)-(*:@ mean) normalize_data=: ([-mean)%(%:@: variance) norm_data=: normalize_data"1&.|: norm=: ([- " 1 mean)%"1 %:@: variance
... With the above definitions (which include a couple names supplied by me), the following holds: (norm -: norm_data) ?3 3$0 1 So... what was the question? Thanks, -- Raul ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
