Gamma¤
distreqx.distributions.Gamma(distreqx.distributions.AbstractSampleLogProbDistribution, distreqx.distributions.AbstractProbDistribution, distreqx.distributions.AbstractSurvivalDistribution, distreqx.distributions.AbstractCDFDistribution)
Gamma distribution with parameters concentration and rate.
The PDF of a Gamma distributed random variable \(X\) is defined on the interval \(X > 0\) and has the form:
\[p(x; \alpha, \beta) = \frac{\beta^\alpha}{\Gamma(\alpha)}
x^{\alpha - 1} e^{-\beta x}\]
where \(\alpha > 0\) is the concentration (shape) parameter and \(\beta > 0\) is the rate (inverse scale) parameter.
__init__(concentration: float | Float[Array, '...'], rate: float | Float[Array, '...'])
¤
Initializes a Gamma distribution.
Arguments:
concentration: Concentration (shape) parameter. Must be positive.rate: Rate (inverse scale) parameter. Must be positive.