[BioC] Knn and missing value

[claudio.is at libero.it]

Dear Bioc,

I want to use the Knn function, from packages(class), to classify sample from a cDNA dataset in which there are some missing values. 
When I run the script, the function complains about missing values, so I checked for some strategies to overcome the problem. 
One way could be to fit the missing values on the data itself, with pamr.knnimpute, but I don't like the idea, as I maight overfit the data itself. 
On the other side I was looking for a strategy to make knn accept missing values but I could not find. 
do you have any suggestion?

--
Claudio


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