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@stdlib/stats

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Standard library statistical functions.

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{{alias}}( α, β ) Returns the expected value of an inverse gamma distribution. If `α <= 1` or `β <= 0`, the function returns `NaN`. If `α` or `β` is `NaN`, the function returns `NaN`. Parameters ---------- α: number Shape parameter. β: number Rate parameter. Returns ------- out: number Expected value. Examples -------- > var v = {{alias}}( 4.0, 12.0 ) 4.0 > v = {{alias}}( 8.0, 2.0 ) ~0.286 See Also --------