This layer adds confidence intervals to barplots, such as those produced by factor effects GAM.
l_ciBar(level = 0.95, mul = NULL, ...)An object of class gamLayer.
the level of the confidence intervals (e.g. 0.9 means 90% intervals).
number multiplied by the standard errors when calculating
standard error curves. By default NULL, if
set to a positive number it will over-ride level.
graphical arguments to be passed to ggplot2::geom_errorbar.
See plot.ptermFactor for examples.