| dtrunc {truncdist} | R Documentation |
Probability density function of truncated random variables
Description
This function computes values for the probability density function of a truncated random variable.
Usage
dtrunc(x, spec, a = -Inf, b = Inf, ...)
Arguments
x |
A numeric vector of quantile values |
spec |
a character value that specifies the underlying probability distribution |
a |
a numeric value for the lower bound of the random variable |
b |
a numeric value for the upper bound of the random variable |
... |
other arguments are are passed to the corresponding quantile function |
Details
The R function is used to access the required probability density and cumulative
distribution functions of the underlying unrestricted random variable.
Value
A vector of density function values.
Author(s)
Frederick Novomestky fnovomes@poly.edu
Saralees Nadarajah saralees.nadarajah@manchester.ac.uk
References
Nadarajah, S. and S. Kotz, 2006. R Programs for Computing
Truncated Distributions, Journal of Statistical Software,
16, August 2006, http://www.jstatsoft.org/v16/c02
Examples
x <- seq( 0, 3, .1 )
pdf <- dtrunc( x, spec="norm", a=1, b=2 )