Character string giving the name of the desired MCMC sequence in
the working session list of sequences.

pname

Character string giving the name of the parameter to be plotted.

bins

Number of line segments within the MCMC sequence at which to plot
the Geweke convergence diagnostics. The ith line segment contains the last
((bins - i + 1) / bins)*100
bins. This may lead to segments in which there are too few iterations to
compute the convergence diagnostics. Such segments, if they exist, are
automatically omitted from the calculations.

p.first

Proportion of iterations to include in the first window.

p.last

Proportion of iterations to include in the last window.

alpha

Alpha level for the rejection region lines drawn on the graph.

annotate

Logical value indicating that a legend be included in the plot.

Value

A logical value indicating that the plot was successfully created.