fill.NA {Mfuzz} | R Documentation |
Methods for replacement of replacing missing values. Missing values should be indicted by NA in the expression matrix.
fill.NA(eset,mode="mean",k=10)
eset |
object of the class exprSet |
mode |
method for replacement of missing values:
|
k |
Number of neighbours, if one of the knn method for
replacement is chosen (knn,knnw ). |
The function produces an object of theexprSet class with missing values replaced.
The replacement methods knn and knnw can computationally intensive for large gene expression data sets. It may be a good idea to run these methods as a ‘lunchtime’ or ‘overnight’ job.
Matthias E. Futschik (http://itb.biologie.hu-berlin.de/~futschik) and Lokesh Kumar
if (interactive()){ data(yeast) # data set includes 17 measurements yeastF <- filter.NA(yeast) yeastF <- fill.NA(yeastF) }