Density, distribution function, quantile function and random generation for the Truncated Gamma distribution with endpoints
at a, b. Support provided by the truncdist package with all parameters available for a standard Gamma distribution.
One additional parameter, shift is provided to generate Gamma distributions with non-zero starts, starting at the shift value.
Usage
dtgamma(x, shape, rate = 1, shift = 0, a = 0, b = Inf, ...)
ptgamma(q, shape, rate = 1, shift = 0, a = 0, b = Inf, ...)
rtgamma(n, shape, rate = 1, shift = 0, a = 0, b = Inf, ...)
qtgamma(p, shape, rate = 1, shift = 0, a = 0, b = Inf, ...)Arguments
- x
numeric vector of quantiles
- shape
shape parameter of gamma distribution
- rate
rate parameter of gamma distribution, default 1
- shift
shift of the left end of the distribution
- a
distribution start
- b
distribution end
- ...
additional parameters to be passed to truncdist::dtrunc, truncdist::ptrunc, truncdist::rtrunc and truncdist::qtrunc
- q
numeric vector of quantiles
- n
number of observations
- p
vector of probabilities