[R] How to find position in bin-data?

[Alexander Engelhardt]

Am 19.03.2011 13:18, schrieb Antje Niederlein:
> Hi there,
>
> probably there is a very simple solution, but I cannot think of one...
> I have a vector with values:
> data<- c(1,6,3,4,8,4,2,9)
> and I have a vector with bin breaks:
> bins<- c(1,3,5,7,9,11)

cut() does what you want:

 > cut(data, bins)
[1] <NA>  (5,7] (1,3] (3,5] (7,9] (3,5] (1,3] (7,9]
Levels: (1,3] (3,5] (5,7] (7,9] (9,11]

 > as.numeric(cut(data,bins))
[1] NA  3  1  2  4  2  1  4

data[1] is NA because of the structure of the intervals.

Grüsse,
  Alex