On Fri, 2005-09-02 at 15:08 +0200, Knut Krueger wrote:
> but back to the last problem,
> what could be wrong that the ylab is not displayed as expected?
>
> with regards
> Knut
The TIF files seem to be OK. However, the PNG files, as a result of your
attempt to scale the plot, do not have enough margin space for side = 2
(left). You would need to adjust the settings for par("mar") and perhaps
adjust the overall plot size in the png() call. This is one of the
reasons why trying to scale a bitmapped image is problematic.
If you want to have finer control over the text annotation, use
something like the following:
# Create just the 'bare' barplot and save the bar
# midpoints in 'mp'
mp <- barplot(1:10, xaxt = "n", yaxt = "n", ann = FALSE)
# Now create the x axis labels, using 'mp' for placement
# 'cex' controls text size.
# See ?axis for more details
axis(1, at = mp, labels = LETTERS[1:10], cex = 1.25)
# Do the same for the y axis
axis(2, at = seq(0, 10, 2), cex = 1)
# Do the x axis label, using mtext()
# See ?mtext
mtext(1, line = 3, text = "X Axis Label", cex = 1.5)
# Same for y axis
mtext(2, line = 2.5, text = "y Axis Label", cex = 1.5)
# Now the title
mtext(3, line = 2, text = "Main Barplot Title", cex = 4)
Again, with the above, be sure to check the output in the target format,
not on the screen. They will not always be the same.
HTH,
Marc Schwartz
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