[Rd] barplot manpage (PR#7331)

Tony Plate tplate at acm.org
Tue Nov 2 02:15:48 CET 2004


Look at the help page for "par" for explanations of "cex" and "lty".

The use of 'mp' is as a variable, as in

 > mp <- barplot(....)

The next paragraph refers to this variable.

-- Tony Plate

At Monday 05:12 PM 11/1/2004, dan at bolser.co.uk wrote:
>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?
>
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