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

kurtosis

• kurtosis(v: number): number

• Returns the excess kurtosis of a Student's t distribution.

  Notes

  • If provided v <= 2, the function returns NaN.
  • If provided 2 < v <= 4, the function returns positive infinity.

  Parameters

  • v: number

    degrees of freedom

  Returns number

  excess kurtosis

  Example

  var v = kurtosis( 9.0 );
  // returns 1.2

  Example

  var v = kurtosis( 5.0 );
  // returns 6.0

  Example

  var v = kurtosis( 3.0 );
  // returns Infinity

  Example

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

  Example

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

  Example

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