[R] Histogram Bin
dwinsemius at comcast.net
Fri May 14 17:51:38 CEST 2010
On May 14, 2010, at 9:55 AM, Research wrote:
> 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) )
> 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,
> R-help at r-project.org mailing list
> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
David Winsemius, MD
West Hartford, CT
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