On May 14, 2010, at 9:55 AM, Research wrote:
Hello,
Is there a function that returns the number of the "bin" (or
quantile, or percentile etc. etc.) that a value of a variable may
belong to?
Tor example:
breaks<-hist(variable, 18, plot=FALSE)
If the following breaks are
5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85
> findInterval(6, c(-Inf, brks) )
[1] 2
the boundaries of successive bins of a histogram, then value "6"
belongs to the 2nd bin.
The first actually, but if you were considering the left hand boundary
as -Inf, then you need to add it to the vector to get the correct
answer from findInterval.
Best regards,
Costas
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David Winsemius, MD
West Hartford, CT
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and provide commented, minimal, self-contained, reproducible code.
