[R] Grouping distances
Jhope
jeanwaijang at gmail.com
Mon Jun 11 08:01:57 CEST 2012
Hi R-listers,
I am trying to group my HTL data, this is a column of data of "Distances to
the HTL" data = turtlehatch. I would like to create an Index of distances
(0-5m, 6-10, 11-15, 16-20... up to 60). And then create a new file with this
HTLIndex in a column.
So far I have gotten this far:
HTL.index <- function (values, weights=c(0, 5, 10, 15, 20, 25, 30, 35, 40,
45, 50, 55, 60)) {
hope <-values * weights
return (apply(hope, 1, sum)/apply(values, 1, sum))
}
write.csv(turtlehatch, "HTLIndex", row.names=FALSE)
----
But I do not seem to be able to create a new column " in a new file.
Please advise, Jean
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