R: As Posterior Predictive Check

as.ppc {LaplacesDemon} | R Documentation

## As Posterior Predictive Check

### Description

This function converts an object of class `demonoid.val` to an object of class `demonoid.ppc`.

### Usage

    as.ppc(x, set=3)

### Arguments

`x` | This is an object of class `demonoid.val`.
`set` | This is an integer that indicates which list component is to be used. When `set=1`, the modeled data set is used. When `set=2`, the validation data set is used. When `set=3`, both data sets are used.

### Details

After using the `Validate` function for holdout validation, it is often suggested to perform posterior predictive checks. The `as.ppc` function converts the output object of `Validate`, which is an object of class `demonoid.val`, to an object of class `demonoid.ppc`. The returned object is the same as if it were created with the `predict.demonoid` function, rather than the `Validate` function.

After this conversion, the user may use posterior predictive checks, as usual, with the `summary.demonoid.ppc` function.

### Value

The returned object is an object of class `demonoid.ppc`.

### Author(s)

Statisticat, LLC. software@bayesian-inference.com

### See Also

`predict.demonoid`, `summary.demonoid.ppc`, and `Validate`.

[Package LaplacesDemon version 16.1.1 Index]