[Rd] barplot manpage (PR#7331)

[dan at bolser.co.uk]

Full_Name: Dan B
Version: R 2.0.0 (2004-10-04).
OS: Fedora 2
Submission from: (NULL) (80.6.127.185)


The man page for barplot (?barplot) is confusing...

<quote>
cex.axis: expansion factor for numeric axis labels.
cex.names: expansion factor for axis names (bar labels).
</quote>

What is an 'expansion factor', and what does it do in this context?


<quote>
axis.lty: the graphics parameter 'lty' applied to the axis and tick
          marks of the categorical (default horizontal) axis.  Note
          that by default the axis is suppressed.
</quote>

This makes no sense unless you know what it does already (which I don't). So
this is more of a programmers cleft note in a 'common language' than a function
documentation page.

<quote>
say 'mp', giving the coordinates of _all_ the bar midpoints drawn,
</quote>

Say what?