On Fri, 22 Aug 2003, Deepayan Sarkar wrote:
>
> Just out of curiosity: ?legend says
>
> legend: a vector of text values or an 'expression' of length >= 1 to
> appear in the legend.
>
> Is an object of mode "call" either ? (is.expression() returns FALSE.) Are they
> expected to work wherever expressions are supposed to work ?
>
They aren't expressions, but they do work in many places where expressions
work, in particular in plotmath. This is good, because quote() is shorter
than expression().
-thomas
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