>Hello,
>
>I'm trying to introduce myself to ggplot2. I'm using syntax from
the help file, but pasting in my own data. I don't understand the error
message I'm getting. Can anyone clue me in? A Google search of this error
statement didn't return anything I could recognize as useful.
>
>Thanks, Paul
>
>
>> str(d.AD)
>'data.frame': 9 obs. of 3 variables:
> $ treatment: Factor w/ 3 levels "1","2","3":
1 1 1 2 2 2 3 3 3
> $ outcome : Factor w/ 3 levels "1","2","3":
1 2 3 1 2 3 1 2 3
> $ counts : num 18 17 15 20 10 20 25 13 12
>
>
>qplot(d.AD$outcome,d.AD$counts,data=d.AD, facets=.~ d.AD$treatment)
>
>Error in `[.data.frame`(plot$data, , setdiff(cond, names(df)), drop = FALSE)
:
> undefined columns selected
>
>
>Paul Prew >▪> Statistician
>651-795-5942 >▪> fax 651-204-7504
>Ecolab Research Center >▪> Mail Stop ESC-F4412-A
>655 Lone Oak Drive >▪> Eagan, MN 55121-1560
>
>
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