> -----Original Message-----
> 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.
You've asked for the data frame in the order that would put gen.names in
increasing value order. But the order you expect gen.names to be in after
ordering is not in increasing-value order. Assuming no missing row numbers in
str.dat, it looks like gen.names[111] is the first value in the order you have
asked for, gen.names[112] the second (or a tie), gen.names[146] the third and
so on.
So it sounds to me as if you're asking R for something you didn't want (not
uncommon, btw).
And with no visible relation between the values in gen.names in your email and
the values in str.dat, I'm afraid I can't see why there should be any
relationship at all, never mind why you aren't getting it.
As an aside, when you asked for order(gen.names), you do realise that you have
asked for the order of the whole data frame and not just the vector
gen.names$gen.names, yes? In this case that's equivalent as you have a
single-column data frame, but in general that might not be a very good idea.
S Ellison
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