[Rd] dotchart.R and left margin

[Prof Brian Ripley]

On 01/07/2013 16:37, Stephen Weigand wrote:
> Hello,
>
> In trying to minimize the margin on the left hand side when using
> dotchart I found what may be a typo in the code.
>
> In the lines below from dotchart.R, should nmai[4L] be nmai[2L]?
>
>
>      if (!(is.null(labels) && is.null(glabels))) {
> nmai <- par("mai")
> nmai[2L] <- nmai[4L] + max(linch + goffset, ginch) + 0.1
> par(mai = nmai)
>      }

I think not.  It is unclear what the intention is, but it seems to be to 
visually balance the left and right margins of the whole plot including 
the labels.

It goes back a very long way: the changes since dotchart replaced 
dotplot in 2001 are merely cosmetic.

>
> Thank you,
>
> Stephen Weigand
>
> --
> Rochester, Minn. USA
>
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-- 
Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
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