Inverse Gaussian {rmutil} | R Documentation |
Inverse Gaussian Distribution
Description
These functions provide information about the inverse Gaussian
distribution with mean equal to m
and dispersion equal to
s
: density, cumulative distribution, quantiles, log hazard, and
random generation.
The inverse Gaussian distribution has density
f(y) =
\frac{1}{\sqrt{2\pi\sigma y^3}} e^{-(y-\mu)^2/(2 y \sigma m^2)}
where \mu
is the mean of the distribution and
\sigma
is the dispersion.
Usage
dinvgauss(y, m, s, log=FALSE)
pinvgauss(q, m, s)
qinvgauss(p, m, s)
rinvgauss(n, m, s)
Arguments
y |
vector of responses. |
q |
vector of quantiles. |
p |
vector of probabilities |
n |
number of values to generate |
m |
vector of means. |
s |
vector of dispersion parameters. |
log |
if TRUE, log probabilities are supplied. |
Author(s)
J.K. Lindsey
See Also
dnorm
for the normal distribution and
dlnorm
for the Lognormal distribution.
Examples
dinvgauss(5, 5, 1)
pinvgauss(5, 5, 1)
qinvgauss(0.8, 5, 1)
rinvgauss(10, 5, 1)
[Package rmutil version 1.1.10 Index]