is.c

A parse tree generated by <code>substitute()</code>.

expr


This provides a quick way to evaluate whether the <code>x</code> or <code>y</code>
vectors have a <code>c()</code> wrapping. This is important for subsequent
subsetting of the respective vectors. Those vectors without a <code>c()</code>
wrapping will be wrapped by <code>list()</code>. Symbols are not passed to
<code>is.c()</code> due to the subsetting of the first element of the parse-tree.


Pass a data frame and mapping aesthetics to ggloop() in order
to create a list of 'ggplot2' plots. The way x-y and dots are paired together
is controlled by the remapping arguments. Geoms, themes, facets, and other
features can be added with the special %L+% (L-plus) operator.

is.c: Determine if the first element of a parse tree is identical to the `c` function.

Description

Usage

Arguments