[R] Colors column don't give correct color with plot()

[Erik Iverson]

My guess is that 

> class(data[,3]) 

gives "factor" as the result, try casting to character if so. 

-----Original Message-----
From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-project.org] On Behalf Of Vivek Ayer
Sent: Friday, July 24, 2009 1:24 PM
To: r-help at r-project.org
Subject: [R] Colors column don't give correct color with plot()

Hey guys,

I'm having trouble getting the correct colors, when they are read from
a csv file. Here's an example:

1 1 black
1 2 green
1 3 green
1 4 black
1 5 peachpuff

Call it blah.csv. Then I ran:

data <- read.csv("blah.csv",header=FALSE,sep="")

and then to plot the data, I ran:

plot(data[,1],data[,2],col=data[,3])

But the output reports a vertical line with colors:

black
red
red
black
green

going up. Is this a bug in R? If so, could someone fix it?

Thanks,
Vivek

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