Implements the functionality of the fanplot package as ggplot
geoms. Designed for summarising MCMC samples from a posterior distribution,
where a visualisation is desired for several values of a continuous
covariate.
Increasing posterior intervals derived from the quantiles of the sampled
quantity are mapped to a continuous colour scale.
The package contains three plotting functions.
geom_fan produces fan plots
geom_interval produces line plots, where pairs of lines represent
intervals
stat_sample randomly plots a specified number of samples from the
data
An additional function calc_quantiles computes relevant
quantiles for a specified set of intervals.