Hi,
On Jul 2, 2009, at 10:39 AM, Mark Knecht wrote:
Hi,
So far my plotting needs have been sort of ignored as I got
acquainted with R this week, but now that I have the basics in place
for the program I wanted to write it's time for me to start learning
about how to make output that better suits my needs. I think I have
two sort of charts I need to concentrate on learning how to produce:
1) Probably a trivial request - a single chart that has multiple lines
on it in different colors. I might have 500 to 1000 lines, all
starting at 0,0 on the left and proceeding to the right where they
end either above 0 or below 0. There will groups of colors depending
on the group they are part of. I'd like a legend on the right or
bottom that explains the colors. I should be able to add or remove
lines at any time.
2) The closest example of the second would be a multi-study chart sort
of like is typical in a lot of stock charting programs. Here's (I
hope) a simple example:
http://stockcharts.com/h-sc/ui?s=BAC
One thing you could do is to peruse the R Graph Gallery to see what
people can do:
http://addictedtor.free.fr/graphiques/
In particular, the graph below looks *somehow* similar to the chart
you link to.
http://addictedtor.free.fr/graphiques/RGraphGallery.php?graph=109
Keep in mind I've not used any command other than plot() and par()
so far. I *very* new to this. I started looking at ggplot2 last night.
I haven't looked at Lattice.
You're looking in the right place. Here's a blog that someone is
writing as they learn how to use ggplot2. His latest posts compare how
to construct graphics from the lattice book " Lattice: Multivariate
Data Visualization with R" using ggplot2:
http://learnr.wordpress.com/
That should be very useful.
Hope that helps,
-steve
--
Steve Lianoglou
Graduate Student: Physiology, Biophysics and Systems Biology
Weill Medical College of Cornell University
Contact Info: http://cbio.mskcc.org/~lianos/contact
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