I'm just getting in to R, been reading manuals (thanks to all who provided pointers to good docs!), and messing with different commands. I'd appreciate a little help with this exploration, and I hope that my question is relatively easy to answer (probably, there's a simple way to do what I'm working toward).
R's statistical functions are coming along easily enough, but graphics seem to be a little tougher for me, probably because I'm used to working in SigmaPlot. As an exercise, I tried to create a gray bar chart with white grid overlay, like the one on page 128 of Tufte's "Visual Display of Quantitative Information." I figure this would cover a lot of the basic techniques that I'll need for "real" work. I got as far as having a gray bar chart (I was working within hist(), mostly) with white borders, white (on white background) axes, white grid *under* the bars, and both x- and y-axis labels (both the numeric or categorical label, and the axis titles...I don't quite remember the correct terms in R).
I wasn't able to find a way to display only the gridlines parallel to the x-axis, or to overlay that grid on top of the bars, or to turn off the numeric labels on the x-axis without touching the y-axis, or to show the x-axis as a gray line without showing the y-axis.
Has anyone done this? How?
Thank you,
Tom
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