posterior | R Documentation |

Return posterior distribution given observing stage-one outcome.

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

`dist` |
a univariate |

`prior` |
a |

`x1` |
stage-one test statistic |

`n1` |
stage-one sample size |

`...` |
further optional arguments |

Object of class `Prior`

```
tmp <- ContinuousPrior(function(x) dunif(x, .2, .4), c(.2, .4))
posterior(Normal(), tmp, 2, 20)
posterior(Normal(), PointMassPrior(0, 1), 2, 20)
```

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