[R] Help transforming a dist
taralx at gmail.com
Fri Dec 23 07:06:31 CET 2011
Perfect! combn was the trick I needed. Although I'll probably rbind
the stuff instead of building a new frame. :)
On Thu, Dec 22, 2011 at 6:48 PM, Sarah Goslee <sarah.goslee at gmail.com> wrote:
> I'm not at all sure what you mean with your matrix: is that supposed to
> be three columns? What about:
>> fakedata <- data.frame(X=runif(3), Y = runif(3))
>> rownames(fakedata) <- c("A", "B", "C")
> A B
> B 0.8617733
> C 0.3813032 0.5124284
>> data.frame(t(combn(rownames(fakedata), 2)), dist=as.vector(dist(fakedata)))
> X1 X2 dist
> 1 A B 0.8617733
> 2 A C 0.3813032
> 3 B C 0.5124284
> On Thu, Dec 22, 2011 at 7:03 PM, Taral <taralx at gmail.com> wrote:
>> I'd like to convert a dist into a table/matrix/thingy of the form:
>> A B value
>> A C value
>> B C value
>> (assuming the dist was over 3 names).
>> Is there a way to do this without using a for loop?
>> Taral <taralx at gmail.com>
>> "Please let me know if there's any further trouble I can give you."
>> -- Unknown
> Sarah Goslee
Taral <taralx at gmail.com>
"Please let me know if there's any further trouble I can give you."
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