[R] Help with impute.knn

[Yihui Xie]

Please read the help page carefully. The value returned by
impute.knn() is not a list with the 'data' component but already a
matrix (with two attributes)!

Regards,
Yihui
--
Yihui Xie <xieyihui at gmail.com>
Phone: +86-(0)10-82509086 Fax: +86-(0)10-82509086
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Homepage: http://www.yihui.name
School of Statistics, Room 1037, Mingde Main Building,
Renmin University of China, Beijing, 100872, China



On Wed, Oct 29, 2008 at 10:48 PM, Jianying Li <jyli at med.unc.edu> wrote:
> ear all,
>
> This is my first time using this listserv and I am seeking help from the
> expert. OK, here is my question, I am trying to use impute.knn function in
> impute library and when I tested the sample code, I got the error as
> followingt:
>
> Here is the sample code:
> library(impute)
> data(khanmiss)
> khan.expr <- khanmiss[-1, -(1:2)]
> ## ## First example
> ## if(exists(".Random.seed")) rm(.Random.seed)
> khan.imputed <- impute.knn(as.matrix(khan.expr))
> ## ## khan.imputed$data should now contain the imputed data matrix
> x<-khan.imputed$data
>
> Here are the results:
>
>> library(impute)
>> data(khanmiss)
>> khan.expr <- khanmiss[-1, -(1:2)]
>> ## ## First example
>> ## if(exists(".Random.seed")) rm(.Random.seed)
>> khan.imputed <- impute.knn(as.matrix(khan.expr))
> Cluster size 2308 broken into 1448 860
> Done cluster 1448
> Done cluster 860
>> ## ## khan.imputed$data should now contain the imputed data matrix
>> x<-khan.imputed$data
> Error in khan.imputed$data : $ operator is invalid for atomic vectors
>
> It seems that khan.imputed$data is empty!! Why is that??
>
> Any help is appreciated,
>
> Jianying Li
>
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