[R] Error in pruning hclust object using maptree package

Keith kigiokli at gmail.com
Tue Mar 16 21:02:27 CET 2010


My bad.

I did read the help. However, I didn't pay enough attention to the data 
argument, and it seems it doesn't need to use data argument in the 
earlier version.

I also noticed this argument afterwards. Now it works for me as well. 
Thanks a lot.

Uwe Ligges wrote:
> 
> 
> On 15.03.2010 16:37, Keith wrote:
>> Dear R users,
>>
>> Due to too many children in my clustering result, I would like to prune
>> the tree-like hclust object into a certain groups. However, an error:
>>
>>  > clip.clust: no data provided for hclust object
>>
>> always shows up.
>>
>> Firstly, I tried the example in the maptree package, and it worked well.
>> Then, I tried to used the example in stats package to generate a hclust
>> object and tried the clip.clust method again, and the error still
>> occurred. Here is the example:
>>
>>  > hc <- hclust(dist(USArrests), "ave")
>>  > pr <- clip.clust(hc, k=4)
>> Error in clip.clust(hc, k = 4) :
>> clip.clust: no data provided for hclust object
> 
> Have you read ?clip.clust ??
> It says for argument "data":
>  data     clustered dataset for hclust application.
> 
> whic means you need to provide "data" as the error message suggests as 
> well.
> 
>  pr <- clip.clust(hc, k=4, data=USArrests)
>  pr$membership
> 
> works for me.
> 
> Uwe Ligges
> 
> 
> 
> 
> 
> 
> 
>> Does anyone have the idea? My environment is
>> R version 2.10.1 (2009-12-14)
>> x86_64-pc-linux-gnu
>> [1] maptree_1.4-6
>>
>> Best regards,
>> Keith
>>
>> ______________________________________________
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>> PLEASE do read the posting guide
>> http://www.R-project.org/posting-guide.html
>> and provide commented, minimal, self-contained, reproducible code.



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