⍝ 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

⍝∇ mean

Back to: code

Back to: Workspaces