Hi
I'm sorry about the triviality of my problem. I have a vector (v) of three
columns (logA, logB, id). I want to compute (and plot) the correlation between
logA and logB for different thresholds of id (e.g. >30, etc). So I tried:
for(i in 1:100){
points(cor(v$logA[v$id>i], v$logB[v$id>i], use="complete.obs"), i))
}
(i created a plot object already)
but it comes with the error: x is empty, ie it doesn't interpolate the value of
i in the for loop into the vector selection.
Does anyone know if there's any better way of doing this?
Many Thanks
Eleni Rapsomaniki
Birkbeck College, UK
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