| qtrunc {truncdist} | R Documentation |
Quantitle Function for Truncated Random Variable
Description
This function evaluates the inverse of the cumulative distribution funciton for a truncated random variable or so the so called quantile function for a given vector of probabilities and the specified distribution.
Usage
qtrunc(p, spec, a = -Inf, b = Inf, ...)
Arguments
p |
A vector of probabilities |
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 and distribution function |
Value
A vector of quantile values in the range of the truncated random variable.
Author(s)
Frederick Novomestky fn334@nyu.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
p <- seq( .1, .9, .01 )
q <- qtrunc( p, spec="norm", a=1, b=2 )