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

Antje Niederlein niederlein-rstat at yahoo.de
Sat Mar 19 14:03:48 CET 2011


Thanks a lot! That's what I was looking for :-)

A



On 19 March 2011 13:56, Duncan Murdoch <murdoch.duncan at gmail.com> wrote:
> 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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