[R] Grouping distances

[Jhope]

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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