External module "stats/base/dists/rayleigh/variance/docs/types/index.d"

variance

• variance(sigma: number): number

• Returns the variance of a Rayleigh distribution.

  Notes

  • If provided σ < 0, the function returns NaN.

  Parameters

  • sigma: number

    scale parameter

  Returns number

  variance

  Example

  var v = variance( 9.0 );
  // returns ~34.765

  Example

  var v = variance( 2.0 );
  // returns ~1.717

  Example

  var v = variance( -0.2 );
  // returns NaN

  Example

  var v = variance( NaN );
  // returns NaN