tree af16331301afa666620012023725f4a617cb0409
parent db4248e21e133481edba97a490647502461f436f
author pleroy <phl+personal@google.com> 1401916366 +0200
committer pleroy <phl+personal@google.com> 1401916402 +0200

Less of a hack: avoid the division/multiplication if the stddev is 0.