⍝ Arithmetic mean: mean 1 2 3 4 2.5 square←*∘2 sqrt←*∘0.5 stdev←{sqrt(mean square ⍵)-square mean ⍵} ⍝ standard deviation. ⎕pp←5 stdev 2 2 2 0 stdev 1 2 3 0.8165 Back to: code Back to: Workspaces