[R] Histogram Bin

[Robert A LaBudde]

 > x<- rnorm(200)
 > hist(x, 18)
 > str(hist(x, 18))
List of 7
  $ breaks     : num [1:15] -3 -2.5 -2 -1.5 -1 -0.5 0 0.5 1 1.5 ...
  $ counts     : int [1:14] 3 1 8 12 34 35 40 30 18 11 ...
  $ intensities: num [1:14] 0.03 0.01 0.08 0.12 0.34 ...
  $ density    : num [1:14] 0.03 0.01 0.08 0.12 0.34 ...
  $ mids       : num [1:14] -2.75 -2.25 -1.75 -1.25 -0.75 -0.25 0.25 
0.75 1.25 1.75 ...
  $ xname      : chr "x"
  $ equidist   : logi TRUE
  - attr(*, "class")= chr "histogram"
 > hist(x, 18, plot=FALSE)$breaks
  [1] -3.0 -2.5 -2.0 -1.5 -1.0 
-0.5  0.0  0.5  1.0  1.5  2.0  2.5  3.0  3.5  4.0


At 09:55 AM 5/14/2010, 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
>
>the boundaries of successive bins of a histogram, then value "6" 
>belongs to the 2nd bin.
>
>Best regards,
>Costas
>
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>and provide commented, minimal, self-contained, reproducible code.

================================================================
Robert A. LaBudde, PhD, PAS, Dpl. ACAFS  e-mail: ral at lcfltd.com
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