Gregory (Greg) L. Snow Ph.D.
Statistical Data Center
Intermountain Healthcare
greg.snow at imail.org
801.408.8111
> -----Original Message-----
> From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-
> project.org] On Behalf Of Andre Nathan
> Sent: Tuesday, May 12, 2009 11:12 AM
> To: r-help at r-project.org
> Subject: [R] Multiple plot margins
>
> Hello
>
> I'm plotting 6 graphs using "mfrow = c(2, 3)". In these plots, only
> graphs in the first column have titles for the y axis, and only the
> ones
> in the last row have titles for the x axis.
>
> I'd like all plots to be of the same size, and I'm trying to keep them
> as near each other as possible, but I'm having the following problem.
>
> If I make a single call to par(mar = ...), to leave room on the left
> and
> bottom for the axes titles, a lot of space will be wasted because not
> all graphs need titles; however, if I make one call of par(mar = ...)
> per plot, to have finer control of the margins, the first column and
> last row plots will be smaller than the rest, because the titles use up
> some of their space.
>
> I thought that setting large enough values for "oma" would do what I
> want, but it doesn't appear to work if "mar" is too small.
>
> To illustrate better what I'm trying to do:
>
> l +-----+ +-----+ +-----+
> a | | | | | |
> b | | | | | |
> e | | | | | |
> l +-----+ +-----+ +-----+
>
> l +-----+ +-----+ +-----+
> a | | | | | |
> b | | | | | |
> e | | | | | |
> l +-----+ +-----+ +-----+
> label label label
>
> where the margins between each plot should be narrow.
>
> Should I just plot the graphs without axis titles and then use text()
> to
> manually position them?
>
> Thanks in advance,
> Andre
>
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