External module "stats/base/dists/gamma/entropy/docs/types/index.d"

entropy

• entropy(alpha: number, beta: number): number

• Returns the differential entropy of a gamma distribution.

  Notes

  • If alpha <= 0 or beta <= 0, the function returns NaN.

  Parameters

  • alpha: number

    shape parameter

  • beta: number

    rate parameter

  Returns number

  entropy

  Example

  var v = entropy( 1.0, 1.0 );
  // returns 1.0

  Example

  var v = entropy( 4.0, 12.0 );
  // returns ~-0.462

  Example

  var v = entropy( 8.0, 2.0 );
  // returns ~1.723

  Example

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

  Example

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

  Example

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

  Example

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