XploRe Help : pdfgammaif

Keywords - Function groups - @ A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Library:	distribs
See also:	cdfgammaif pdfgamma

Quantlet:		pdfgammaif
Description:		returns the values of the probability density function of the gamma distribution with parameters alpha and (1/beta) for the elements of an array.

Reference(s):

[1] L. Devroye, "Non-Uniform Random Variate Generation", Springer-Verlag, 1986. p. 401. [2] M. Abramowitz and I. A. Stegun, "Handbook of Mathematical Functions", Government Printing Office, 1964, 26.1.32.

Usage:	`y = pdfgammaif (x, alpha, beta)`
Input:
	`x`	array, input arguments
	`alpha`	scalar, parameter from gamma distribution
	`beta`	scalar, parameter from gamma distribution
Output:
	`y`	array, pdf values

Example:

library("xplore") library("distribs") pdfgammaif(#(0.1,0.7)~#(1,-1),3,2)

Result:

Contents of pdfgammaif
[1,]  0.032749  0.54134
[2,]  0.48333        0

Author: A. Misiorek, 20041120 license MD*Tech