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

stdev

• stdev(k: number): number

• Returns the standard deviation of a chi-squared distribution.

  Notes

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

  Parameters

  • k: number

    degrees of freedom

  Returns number

  standard deviation

  Example

  var v = stdev( 9.0 );
  // returns ~4.243

  Example

  var v = stdev( 1.0 );
  // returns ~1.414

  Example

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

  Example

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