On 10/10/2013 12:00 PM, Karl Fetter wrote:
Hello,
I'm using R version 3.0.0 on a mac. I'm having trouble getting order to
behave as I expect it should. I'm trying to sort a data.frame according to
a character vector. I'm able to sort the data.frame, but it retruns an
unexpected result. I have no idea where the order that is being produced
comes from.
It comes from gen.names, which is not a column of your dataset. I think
you'll have to give us something reproducible before we can help you.
Duncan Murdoch
Any ideas on how to properly order a data frame by a character vector?
Here is the current order of the data frame (called str.dat):
> head(str.dat)
str.names POPINFO POPFLAG LOCDATA Loc1 Loc2 Loc3 ind.names
1 alba1.pop3 3 0 1 12 3 2 alba1
2 alba2.pop3 3 0 1 3 3 2 alba2
3 alch1.pop4 4 0 2 2 3 2 alch1
4 alch2.pop4 4 0 2 2 3 2 alch2
5 alco1.pop4 4 0 3 3 3 2 alco1
6 alco2.pop4 4 0 3 3 3 2 alco2
Here's the order I expect it to be in when I use order:
> head(data.frame(gen.names))
gen.names
1 magv1
2 magv2
3 magv3
4 magv4
5 lc1
6 lc2
Here's the order I'm getting:
> head(str.dat[order(gen.names),])
str.names POPINFO POPFLAG LOCDATA Loc1 Loc2 Loc3 ind.names
111 ncle2.pop5 5 0 39 3 3 2 ncle2
112 ncle3.pop5 5 0 39 2 2 2 ncle3
146 wvma1.pop8 8 0 57 3 3 2 wvma1
145 wvfa2.pop8 8 0 56 3 3 2 wvfa2
55 flse6.pop2 2 0 19 2 5 4 flse6
54 flse5.pop2 2 0 19 2 5 4 flse5
Many thanks,
Karl
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