Hi Chipper,

Try

test.df[unlist(sort.v),]

HTH,
Jorge


On Thu, Aug 26, 2010 at 5:59 PM, chipmaney <> wrote:

>
> I have a dataset I need to sort:
>
> test.df<-data.frame(Zone=c("Floodplain", "Lake",
> "Shoreline"),Cover=c(50,60,70))
>
> However, I don't want it sorted ascending/descending but in an order that I
> define via a vector:
>
> sort.v<-data.frame(c("Lake","Shoreline","Floodplain"))
>
> I realize I could probably just create the vector of [factors] in the order
> I want, then assign the value:
>
> sort.v$Cover<-test.df$Cover
>
> However, this is inefficient.  Is there source code or a syntactical trick
> that will do the same more efficiently?  Note: I have investigated order()
> and sort(), but neither seems to have an argument for defining the sorting
> order.
>
> Thanks in advance, Chipper
>
> --
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>
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