[R] Inverse (cumulative) distribution functions

[Huntsinger, Reid]

Inverse cdfs are also called quantile functions, and in R they are named
qxxxx; cdfs are pxxxx, random numbers are rxxxx, density is dxxxx, where
xxxx names the distribution family. Eg qnorm, pnorm, rnorm, dnorm.

Reid Huntsinger

-----Original Message-----
From: Alexander.Hener at daimlerchrysler.com
[mailto:Alexander.Hener at daimlerchrysler.com]
Sent: Friday, January 04, 2002 10:34 AM
To: r-help at lists.r-project.org
Subject: [R] Inverse (cumulative) distribution functions


hi list,

any help is appreciated concerning the following questions, and please note 
that I am not very experienced in neither R nor numerical problems :

1. are any inverse (cumulative) distributions functions implemented in R ? 

2. if not, does R offer the possibility to compute such functions for a
given 
distribution, and how? 

3. generally, are there any resources on the web or otherwise where,
preferably 
closed form solutions of, inverse (cumulative) distribution functions are 
listed? I realise that there should be only few. 


Thanks in advance,

Alexander Hener. 

________________________________________________________________
Alexander Hener                       DaimlerChrysler AG
Data Mining Solutions (FT3/AD)        Research & Technology
                                      P.O. Box 2360
                                      89013 Ulm / Germany

e-mail:                               Phone: + 49 (731) 505-2438
alexander.hener at DaimlerChrysler.com   Fax:   + 49 (731) 505-4210
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