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@stdlib/stats

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Standard library statistical functions.

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{{alias}}( λ ) Returns the standard deviation of an exponential distribution. If provided `NaN` as any argument, the function returns `NaN`. If provided a negative value for `λ`, the function returns `NaN`. Parameters ---------- λ: number Rate parameter. Returns ------- out: number Standard deviation. Examples -------- > var v = {{alias}}( 9.0 ) ~0.11 > v = {{alias}}( 1.0 ) 1.0 See Also --------