predictive_cdf: Predictive CDF

In kkmann/adoptr: Adaptive Optimal Two-Stage Designs in R

Predictive CDF

Description

predictive_cdf() evaluates the predictive CDF of the model specified by a DataDistribution dist and Prior at the given stage-one outcome.

Usage

predictive_cdf(dist, prior, x1, n1, ...)

## S4 method for signature 'DataDistribution,PointMassPrior,numeric'
predictive_cdf(dist, prior, x1, n1, ...)

## S4 method for signature 'DataDistribution,ContinuousPrior,numeric'
predictive_cdf(
  dist,
  prior,
  x1,
  n1,
  k = 10 * (prior@support[2] - prior@support[1]) + 1,
  ...
)

Arguments

dist	a univariate distribution object
prior	a Prior object
x1	stage-one test statistic
n1	stage-one sample size
...	further optional arguments
k	number of pivots for crude integral approximation

Value

numeric, value of the predictive CDF

Examples

predictive_cdf(Normal(), PointMassPrior(.0, 1), 0, 20) # .5

tmp <- ContinuousPrior(function(x) dunif(x, .2, .4), c(.2, .4))
predictive_cdf(Normal(), tmp, 2, 20)

kkmann/adoptr documentation built on Feb. 3, 2024, 6:55 p.m.