Description Usage Arguments Details Value Author(s) See Also

View source: R/as.initial.values.R

This function returns the most recent posterior samples from an object
of class `demonoid`

or `demonoid.hpc`

, the posterior means
of an object of class `iterquad`

, the posterior modes of an
object of class `laplace`

or `vb`

, the posterior means of an
object of class `pmc`

with one mixture component, or the latest
means of the importance sampling distribution of an object of class
`pmc`

with multiple mixture components. The returned values are
intended to be the initial values for future updates.

1 |

`x` |
This is an object of class |

Unless it is known beforehand how many iterations are required for
`IterativeQuadrature`

, `LaplaceApproximation`

,
or `VariationalBayes`

to converge, MCMC in
`LaplacesDemon`

to appear converged, or the normalized
perplexity to stabilize in `PMC`

, multiple updates are
necessary. An additional update, however, should not begin with the
same initial values as the original update, because it will have to
repeat the work already accomplished. For this reason, the
`as.initial.values`

function may be used at the end of an update
to change the previous initial values to the latest values.

When using `LaplacesDemon.hpc`

, `as.initial.values`

should be used when the output is of class `demonoid.hpc`

, before
the `Combine`

function is used to combine the multiple
chains for use with `Consort`

and other functions, because
the `Combine`

function returns an object of class
`demonoid`

, and the number of chains will become unknown. The
`Consort`

function may suggest using
`as.initial.values`

, but when applied to an object of class
`demonoid`

, it will return the latest values as if there were
only one chain.

The returned value is a vector (or matrix in the case of an object of
class `demonoid.hpc`

, or `pmc`

with multiple mixture
components) of the latest values, which may now be used as initial
values for a future update.

Statisticat, LLC. [email protected]

`Combine`

,
`IterativeQuadrature`

,
`LaplaceApproximation`

,
`LaplacesDemon`

,
`LaplacesDemon.hpc`

,
`PMC`

, and
`VariationalBayes`

.

LaplacesDemonR/LaplacesDemonCpp documentation built on May 7, 2019, 12:43 p.m.

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