[R] Subset and point plot
ehlers at ucalgary.ca
Tue Feb 2 19:56:43 CET 2010
I tried your code and a funny thing happened: I got an
object 'Foodin' not found
Hmmm; could you try to post something _reproducible_
(and minimal, please)?
But here are some suggestions:
1. investigate '%in%'
2. put a comma after Wgt in your plot call
3. see what you get from
4. assuming that 'Tanks' is a factor, see what you get from
Marlin Keith Cox wrote:
> OK, I need help plotting. I have column headings of Day, Wgt, Foodin, Rep,
> Grp and Tanks. Rep=c(1,2,3) and Tanks=c(a1,a2,a3,a4,a5,a6,
> c1,c2,c3,c4,c5,c6, h1,h2,h3,h4,h5,h6).
> I created a subset where I only would like Rep=2, and Tanks=c(a4,c4,h4) and
> would like to graph (points) of Wgt and Day. I would think that I only need
> 3 colors, but when I run with only 3, only 2 lines show up. When I add a
> 4th color (pink in this case), I get the 3rd line. If I subset for
> c(a1,a2,a3), it works using three colors. Should be simple, but I dont see
> daily<-subset(raw, subset=Foodin>1 & Rep==2 & Grp=="fed" & Tanks=="a4"|
> Foodin>1 & Rep==2 & Grp=="fed" & Tanks=="c4"|Foodin>1 & Rep==2 & Grp=="fed"
> & Tanks=="h4")
> plot(Day, Wgt col=c("red","blue","purple","pink")[Tanks])
University of Calgary
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