plot_acf | R Documentation |
This function plots the autocorrelation of the Gibbs samples. The plots
include the total Gibbs sample size TSS
and the effective sample size
ESS
, see the details.
plot_acf(gibbs_samples, par_labels)
gibbs_samples |
A matrix of Gibbs samples. |
par_labels |
A character vector with labels for the Gibbs samples, of length equal to the
number of columns of |
The effective sample size is the value
TSS / \sqrt{1 + 2\sum_{k\geq 1} \rho_k}
,
where \rho_k
is the auto correlation between the chain offset by
k
positions. The auto correlations are estimated via
spec.ar
.
No return value. Draws a plot to the current device.
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