[R] cclust causes R to crash when using manhattan kmeans

[Timo Becker]

Uwe Ligges schrieb:

> Timo Becker wrote:
>
>> Dear R users,
>>
>> When I run the following code, R crashes:
>>
>> require(cclust)
>> x <- matrix(c(0,0,0,1.5,1,-1), ncol=2, byrow=TRUE)
>> cclust(x, centers=x[2:3,], dist="manhattan", method="kmeans")
>>
>> While this works:
>>
>> cclust(x, centers=x[2:3,], dist="euclidean", method="kmeans")
>>
>> I'm posting this here because I am not sure if it is a bug.
>> I've been searching for a manhattan kmeans method and I found a 
>> solution by using the package amap:
>>
>> require(amap)
>> Kmeans(x, x[2:3,], method="manhattan")
>>
>> This works for me, so I don't need the cclust package anymore.
>> Anyway, I wanted to report the cclust behaviour.
>
>
>
> Please report it to its mainatiner (CCing).
>
> Uwe Ligges

I've already done that on February, 17th, but got no reply.
Perhaps my mail was caught by a spam filter.
Another explanation could be that as

Friedrich.Leisch at tuwien.ac.at wrote:

>* cclust is no longer actively maintained, the code has been
>  integrated in my more general package flexclust, see also
>  http://www.ci.tuwien.ac.at/~leisch/papers/Leisch-2006.pdf
>  (but cclust in flexclust has the same bug, so thanks a lot for
>  reporting it).
>  
>
Because of this and because I did not know if it really is a bug (in 
this case I should have posted it to the R-bugs mailing list) I posted 
it here.

Greetings,
Timo

>
>
>> R version 2.2.1, 2005-12-20, i386-pc-mingw32
>>
>> Cheers,
>> Timo
>>
>
>


-- 
Timo Becker
Phonetics
Austrian Academy of Sciences
Acoustics Research Institute