set the line width, same as in
plot. Specified in order of the main line
and the two confidence bands.
...
any other passthru parameters
fill
a three-component vector or list (recycled
otherwise) providing filling values at the left/within/to
the right of the data range. See the fill argument of
na.fill for details.
Details
The previous parameter na.pad has been replaced
with fill; use fill = NA instead of
na.pad = TRUE, or fill = NULL instead of
na.pad = FALSE.