diff --git a/basis/math/statistics/statistics.factor b/basis/math/statistics/statistics.factor index bcaacbb82e..80ce8a99aa 100644 --- a/basis/math/statistics/statistics.factor +++ b/basis/math/statistics/statistics.factor @@ -272,6 +272,8 @@ PRIVATE> : sample-std ( seq -- x ) 1 std-ddof ; inline +ALIAS: std sample-std + : signal-to-noise ( seq -- x ) [ mean ] [ population-std ] bi / ; : mean-dev ( seq -- x ) dup mean v-n vabs mean ;