Given a gam model this convenience function returns a ggplot2 object
depicting 2d smooth terms specified in the model as heat/contour plots. If
more than one 2d smooth term is present individual terms are faceted.
Usage
gg_tensor(x, ci = FALSE, ...)
Arguments
x
a fitted gam object as produced by gam().
ci
A logical value indicating whether confidence intervals should be
calculated and returned. Defaults to TRUE.