# rejectionRate

From coda v0.17-1
by Martyn Plummer

##### Rejection Rate for Metropolis--Hastings chains

`rejectionRate`

calculates the fraction of time that a
Metropolis--Hastings type chain rejected a proposed move. The rejection
rate is calculates separately for each variable in the `mcmc.obj`

argument, irregardless of whether the variables were drawn separately or
in a block. In the latter case, the values returned should be the
same.

- Keywords
- ts

##### Usage

`rejectionRate(x)`

##### Arguments

- x
- An
`mcmc`

or`mcmc.list`

object.

##### Details

For the purposes of this function, a "rejection" has occurred if the
value of the time series is the same at two successive time points.
This test is done naively using `==`

and may produce problems due
to rounding error.

##### Value

- A vector containing the rejection rates, one for each variable.

*Documentation reproduced from package coda, version 0.17-1, License: GPL (>= 2)*

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