Hello,
I haven't been following this thread but apparently the answer to your
worries is no.
You can use a combination of names() and grep() to sort it out.
something like
#nms <- names(adat)
nms <- c("Year", "Route", "Point", paste0("Sp", 1:250))
pattern <- "^Sp[[:digit:]]+$"
whichCols <- grep(pattern, nms)
whichNames <- nms[whichCols]
reshape(..., varying = whichCols, times = whichNames, ...)
Hope this helps,
Rui Barradas
Em 07-10-2012 15:35, agoijman escreveu:
The problem with that, is that I just wrote an example of my database, but I
have around 250 species and more than 500 sites. In the approach you show
me, it looks like I have to enter every species name and sites individually,
right?
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