[R] Bucketting data

[Marc Schwartz]

On Mon, 2005-06-20 at 13:50 +0100, Uzuner, Tolga wrote:
> Hi,
> 
> Am sure this is a trivial question but for some reason, haven't been
> able to figure it out.
> 
> I want to bucket data in a vector, and then iterate over the buckets.
> 
> Say the data set is:
> 
> > cleandata[,4]
>  [1]  26  26  26  26  26  26  26  26  26  26  26  26  61  61  61  61
> 61  61  61  61  61  61  61  89  89  89  89  89  89  89 180 180 180 180
> 362 544 544 544
> [39] 544 544 544 544 544 544 544
> 
> This has the buckets: 
> 
> 26 61 89 180 362 544
> 
> I'd like something which gives me a vector of these buckets, i.e.
> bucket(cleandata[,4])=vector of 26 61 89 180 362 544
> 
> and length(bucket(cleandata[,4]))=6
> 
> Thanks,
> Tolga

> MyData
 [1]  26  26  26  26  26  26  26  26  26  26  26  26  61  61  61  61  61
[18]  61  61  61  61  61  61  89  89  89  89  89  89  89 180 180 180 180
[35] 362 544 544 544 544 544 544 544 544 544 544

> bucket <- unique(MyData)

> bucket
[1]  26  61  89 180 362 544

> length(bucket)
[1] 6

# If you want a count of each unique value:

> table(MyData)
MyData
 26  61  89 180 362 544 
 12  11   7   4   1  10 


HTH,

Marc Schwartz