filter.NA {Mfuzz} | R Documentation |
This function can be used to exclude genes with a large number of expression values not available.
filter.NA(eset,thres=0.25)
eset |
object of the class “exprSet” |
thres |
threshold for excluding genes. If the percentage
of missung values (indicted by NA in the expression matrix)
is larger than thres , the corresponding gene
will be excluded. |
The function produces an object of the exprSet class. It is the same as the input eset object, except for the genes excluded.
Matthias E. Futschik (http://itb.biologie.hu-berlin.de/~futschik)
if (interactive()){ data(yeast) # data set includes 17 measurements yeastF <- filter.NA(yeast) # genes are excluded if more than 4 measurements are missing }