External module "stats/chi2gof/docs/types/index.d"

Export assignment chi2gof

• chi2gof(x: NumericArray | ndarray, y: NumericArray | ndarray | string, ...args: Array<number | Options>): Results

• Performs a chi-square goodness-of-fit test.

  throws

  first argument must be an array-like object or a 1-dimensional array containing nonnegative integers

  throws

  second argument must be either an array-like object (or a 1-dimensional array) of nonnegative numbers, an array-like object (or a 1-dimensional array) of probabilities summing to one, or a discrete probability distribution name

  throws

  must provide valid options

  throws

  first and second arguments must have the same length

  throws

  first argument must contain at least one element greater than zero

  Parameters

  • x: NumericArray | ndarray

    observation frequencies

  • y: NumericArray | ndarray | string

    expected frequencies or a discrete probability distribution name

  • Rest ...args: Array<number | Options>

    probability mass function (PMF) arguments followed by an optional options object

  Returns Results

  test results

  Example

  var x = [ 89, 37, 30, 28, 2 ];
  var p = [ 0.40, 0.20, 0.20, 0.15, 0.05 ];
  
  var out = chi2gof( x, p );
  
  var o = out.toJSON();
  // returns { 'pValue': ~0.0406, 'statistic': ~9.9901, ... }