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

stdev

• stdev(v: number): number

• Returns the standard deviation of a Student's t distribution.

  Notes

  • If provided 1 < v <= 2, the function returns positive infinity.
  • If provided v <= 1, the function returns NaN.

  Parameters

  • v: number

    degrees of freedom

  Returns number

  standard deviation

  Example

  var v = stdev( 9.0 );
  // returns ~1.134

  Example

  var v = stdev( 2.0 );
  // returns Infinity

  Example

  var v = stdev( 0.5 );
  // returns NaN

  Example

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

  Example

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