repl.txt (652B)
1 2 {{alias}}( k, λ ) 3 Returns the expected value of an Erlang distribution. 4 5 If provided `NaN` as any argument, the function returns `NaN`. 6 7 If not provided a positive integer for `k`, the function returns `NaN`. 8 9 If provided a non-positive value for `λ`, the function returns `NaN`. 10 11 Parameters 12 ---------- 13 k: integer 14 Shape parameter. 15 16 λ: number 17 Rate parameter. 18 19 Returns 20 ------- 21 out: number 22 Expected value. 23 24 Examples 25 -------- 26 > var v = {{alias}}( 1, 1.0 ) 27 1.0 28 > v = {{alias}}( 4, 12.0 ) 29 ~0.333 30 > v = {{alias}}( 8, 2.0 ) 31 4.0 32 33 See Also 34 -------- 35