Hi Jim,
Use the build "seq(along=vec))" as in:
x <- seq(5, 50, by=5)
for (i in seq(along=x))
cat(paste(" index of i-value ", i, " with x-value: ", x[i], sep=""), fill=T)Eric
At 00:55 7/04/2004, Jim Java wrote:
Hi Everyone:--
Is it possible, within a for loop not explicitly using whole-number indexing, to find out the index value of the loop variable within the vector or list that's being looped through? For example, in --
x <- seq(5, 50, by=5)
index.in.x <- 1
for (i in x) {
cat(paste(" index of i-value ", i, " within x: ", index.in.x, sep=""), fill=T)
index.in.x <- index.in.x + 1
}
-- is it in general possible to get values of "index.in.x" without making it a count variable, as above?
Thank you.
-- Jim Java
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Eric Lecoutre UCL / Institut de Statistique Voie du Roman Pays, 20 1348 Louvain-la-Neuve Belgium
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If the statistics are boring, then you've got the wrong numbers. -Edward Tufte
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