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multi-panel figure: overall title for each row

3 messages · capy_bara, Jean V Adams, Bert Gunter

capy_bara
# 
Dear all,
I have a 3x2 plot and in addition to the title of the individual plots I
would like to have an overall title
for each row.  I managed to get an overall title for the whole plot matrix
with mtext:

par(mfrow=(c(3,2)), mar=c(6.4,4.5,4.2, 1.8), oma=c(0,0,3,0))
for (i in 1:6)
  barplot(sample(1:10,5), main=paste("Plot #",i))
mtext("Overall Title Row 1", outer=TRUE)

but I  cannot put an overall title in the middle above the titles of the
plots in the second or third row. 
If I use mtext within the loop, I can only add another title above an
individual plot.

I hope someone can help me, many thanks in advance

Hannes




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Bert Gunter
# 
A perhaps more "elegant" way to do it would be to use the ?layout
function rather than the ancient mfrow() to create space for both
titles and graphs. You could then e.g. "draw" your titles in the space
you created for titles.

-- Bert
On Wed, Oct 24, 2012 at 5:33 AM, Jean V Adams <jvadams at usgs.gov> wrote: