get_difference() returns difference between two
smooths.
plot.tidygam.diff method to plot difference
smooth.
Data gest and struct.
separate and sep_by arguments in
predict_gam() allow the user to separate variables in the
model that were created with interaction().
Vignette get-started.Rmd.
Error when predicting bivariate smooths (s/te/ti(),
fs/re basis functions) where only the first variable was
returned internally.
Error when plotting difference smooth with no significant difference (closes #5).
Error where get_difference() did not work when
excluding random smooths (closes #8).
First minor release of the package.
Added a NEWS.md file to track changes to the
package.