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

Duncan Murdoch murdoch.duncan at gmail.com
Sat Mar 19 13:56:05 CET 2011


On 11-03-19 8:18 AM, Antje Niederlein wrote:
> 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)
>
> Now, I'd like to get for each data point the index of the bin-vector
> where the value falls in (or equals the lower bin break).
>
> In the example case, I'd like to get:
>
> c(1,3,2,2,4,1,5)
>
> How would you solve it?

Use cut.  For example,

data <- c(1,6,3,4,8,4,2,9)
bins <- c(1,3,5,7,9,11)

result <- cut(data, breaks=bins, right=FALSE)
as.numeric(result)


Duncan Murdoch



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