[Rd] documentation for legend(): possible missing info for pch.

From: Laurent Gautier <lgautier_at_gmail.com>
Date: Fri, 07 Dec 2012 09:25:11 +0100

In the documentation for graphics::legend(), the entry for "pch" is:

> pch: the plotting symbols appearing in the legend, either as

           vector of 1-character strings, or one (multi character)
           string.  _Must_ be specified for symbol drawing.

If I did not misread them, examples in the same documentation page suggest that it is also possible to pass integers.



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