[R] Multiple density plots

[Sean MacEachern]

Hi all,

I'm interested in doing a multiple density plot on a number of columns in a
dataframe. 

>DF

     lineA.1  lineA.2   lineB.1  lineB.2
r1  5.355354 6.665575 10.288498 11.74750
r2  3.643415 5.427600 11.407112 13.97065
r3  5.813674 6.438502  9.628871 11.57456
r4  5.241340 5.125049 10.456221 12.35381
r5  4.640885 8.635518  8.344704 11.98484
r6  4.559852 6.416171 10.419599 10.89247
r7  4.058033 7.378469  9.043280 11.88214
r8  3.439271 5.108395 10.197870 10.65987
r9  5.129664 4.326907  8.851552 11.46618
r10 4.258742 7.002541  8.716967 13.07019



I have been reading about the simple.densityplot

However, I can't find it in R has it been replaced?



>simple.densityplot(line6.1,line6.2,line7.1,line7.2, data = DF)
Error: could not find function "simple.densityplot"

> sessionInfo()
R version 2.6.0 (2007-10-03)
i386-apple-darwin8.10.1

locale:
en_US.UTF-8/en_US.UTF-8/en_US.UTF-8/C/en_US.UTF-8/en_US.UTF-8

attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods   base

other attached packages:
[1] MASS_7.2-41

loaded via a namespace (and not attached):
[1] tools_2.6.0



Sorry if this is a simple question, but I haven't found much reference to
any changes on the web or in any tutorials.

Cheers,

Sean