[R] RE: Help with multicolored points in one plot
David Thibault
dthibault at esperion.com
Thu Feb 26 17:27:40 CET 2004
Hello again,
I think this will help me:
http://www.math.montana.edu/Rweb/Rhelp/points.html
I'll email again if it doesn't.
Dave
-----Original Message-----
From: David Thibault
Sent: Thursday, February 26, 2004 11:13 AM
To: R-help at r-project.org
Subject: Help with multicolored points in one plot
Hello all,
I have a situation where I'd like to plot points from multiple groups of
data in one plot. I'd like each group's points to be colored a different
color. I've seen people comment on how you can alternate colors by
providing a range of colors and then it will loop through each color as it
plots individual points. However, that just goes by individual points and
not by group.
Next I thought if, for example, I had 2 groups, I could make a 2 color
vector. Then I could merge the data from my two groups alternating into an
X and Y vector, but that doesn't work either because the 2 groups may not
have equal numbers of members. For example
-------------------------------
Group1_Xdata <- c(1,2,3,4,5)
Group2_Xdata <- c(10,20,30,40,50)
Colors <- c("red","blue")
Merged_XData <- c(1,10,2,10,3,30,4,40,5,50)
(SAME MERGE FOR Y DATA)
-----------------------------
That would work to make group1 red and group2 blue, but if Group 2 had 6
members instead of 5, then the 6th member would come out red.
Any thoughts? Also, I want to be able to code this generically enough that
I can have any number of groups and colors.
Best Regards,
Dave
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