Entering edit mode
Chelsea Ellis
▴
10
@chelsea-ellis-1670
Last seen 10.2 years ago
Hi,
I'm just learning Bioconductor, and I'm trying to do KNN
classification
using the Golub test and training sets with ALL and AML as the
classifier.
When I use the function
knn(golubTrain, golubTest, cl=golubTrain$ALL.AML, k=3),
it's says that the lengths of the training set and the classifier
don't
match. The documentation on KNN says you need to have the test and
training
sets in matrix form, but I'm not sure how to change an expression set
into a
matrix. I tried "unclass" and "as.matrix" with no luck. This is
probably
an easy question, but I'm stuck. Thanks for any help you can give.
Chelsea