[R] col allocation is not right

Phil Spector spector at stat.berkeley.edu
Wed May 19 20:30:07 CEST 2010

Changbin -
    Please take a look at the help file for the function
"palette", which is how R maps col= numbers to colors.
Also look at the default output of that function:

> palette()
[1] "black"   "red"     "green3"  "blue"    "cyan"    "magenta" "yellow" 
[8] "gray"

You might get better results by specifying the colors that you
want directly.

 					- Phil Spector
 					 Statistical Computing Facility
 					 Department of Statistics
 					 UC Berkeley
 					 spector at stat.berkeley.edu

On Wed, 19 May 2010, Changbin Du wrote:

> plot(svm.auc, col=2, main="ROC curves comparing classification performance\n
> of six machine learning models")
> legend(0.5, 0.6, c(ns, nb, nr, nt, nl,ne), 2:6, 9) # Draw a legend.
> plot(bo.auc, col=3, add=T) # add=TRUE draws on the existing chart
> plot(rf.auc, col=4, add=T)
> plot(tree.auc, col=5, add=T)
> plot(nn.auc, col=6, add=T)
> plot(en.auc, col=9,lty="dotted",lwd=3, add=T)
> Hi, Dear community,
> I am use the above codes to draw plot, but find that col =9 is not used by
> the R.  Instead, it use the col=2 when plot en.auc. WHy this happens and how
> to check the col allocation in R?
> Thanks!
> -- 
> Sincerely,
> Changbin
> --
> 	[[alternative HTML version deleted]]
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