External module "stats/base/dists/kumaraswamy/stdev/docs/types/index.d"

stdev

• stdev(a: number, b: number): number

• Returns the standard deviation of a Kumaraswamy's double bounded distribution.

  Notes

  • If a <= 0 or b <= 0, the function returns NaN.

  Parameters

  • a: number

    first shape parameter

  • b: number

    second shape parameter

  Returns number

  standard deviation

  Example

  var v = stdev( 0.5, 1.0 );
  // returns ~0.298

  Example

  var v = stdev( 4.0, 12.0 );
  // returns ~0.13

  Example

  var v = stdev( 12.0, 2.0 );
  // returns ~0.077

  Example

  var v = stdev( 1.0, -0.1 );
  // returns NaN

  Example

  var v = stdev( -0.1, 1.0 );
  // returns NaN

  Example

  var v = stdev( 2.0, NaN );
  // returns NaN

  Example

  var v = stdev( NaN, 2.0 );
  // returns NaN