Description Usage Arguments Details Value Note Examples
Density, distribution function, quantile function and random generation for the prior predictive distribution of the count in the control group.
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y,q |
vector of non-negative integer quantiles |
a,b |
non-negative shape parameter and rate parameter of the Gamma prior distribution on the rate μ |
T |
sample size of the control group |
... |
other arguments passed to |
p |
vector of probabilities |
n |
number of observations to be simulated |
The prior predictive distribution of the count y is the Poisson-Gamma distribution with shape parameter a and hyperrate parameter b/T, which is also the negative binomial distribution with shape a and probability of success b/(b+T).
dprior_y
gives the density, pprior_y
the distribution function,
qprior_y
the quantile function, rprior_y
samples from the distribution,
and sprior_y
gives a summary of the distribution.
Prior_y
is a generic name for the functions documented.
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