XploRe Help : cdfncb2

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:	cdfb2 pdfb2 cdfncchi2 cdfncf2

Quantlet:		cdfncb2
Description:		Cdfncb2 returns the values of the noncentral beta-distribution function with parameters a and b and the parameter of noncentrality l for the elements of an array.

Usage:	`y = cdfncb2(x, a, b{, l})`
Input:
	`x`	input array
	`a`	a scalar or an array of the same dimension as x containing the parameter a for beta-distribution
	`b`	a scalar or an array of the same dimension as x containing the parameter b for beta-distribution
	`l`	a scalar or an array of the same dimension as x containing the value for the parameter of noncentrality for noncentral beta-distribution; if not specified, l = 0 is used
Output:
	`y`	output array, it contains the values of the specified noncentral beta-distribution function for the elements of array x

Note:

For negative elements of array x, zeros are returned. For elements of array x greater than 1, ones are returned. The values can be actually computed only for 0 <= l <= 1400.

Example:

library("distribs") a=#(0.5, 0.4)~#(0.01, 1)~#(-1,2) cdfncb2(a, 0.5, 1.5, 2)

Result:

Contents of y
[1,]  0.54926  0.047388        0
[2,]  0.44987        1        1

Author: P. Cizek, 20010621