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...NA=rowMeans(is.na(exprdata)) But is there a shorter way to remove the rows based on "(1-freqNA)>0.1" than looping through the whole matrix using a for loop? All the best, Joel _________________________________________________________________ Hitta kärleken i vinter! http://dejting.se.msn.com/channel/index.aspx?trackingid=1002952 [[alternative HTML version deleted]]

...row = c(1, 3)) plot(a$X, main = "Pre-processed data") plot(a$X%*%a$K, main = "PCA components") plot(a$S, main = "ICA components") } Best regards, Joel _________________________________________________________________ Hitta kärleken i vinter! http://dejting.se.msn.com/channel/index.aspx?trackingid=1002952 [[alternative HTML version deleted]]

...= T) # Find the smallest value in the dataset col[col == NA] = (min.val / 10) # Doesn't work... col # Column index } Does any of you have any suggestions? Best regards, Joel _________________________________________________________________ Hitta kärleken i vinter! http://dejting.se.msn.com/channel/index.aspx?trackingid=1002952 [[alternative HTML version deleted]]

...but I'm not sure how it works. Furthermore, I'm not sure how to deal with the evaluation of the results, are there any other factors I should consider, such as R square etc? All the best, Joel _________________________________________________________________ Hitta kärleken i vinter! http://dejting.se.msn.com/channel/index.aspx?trackingid=1002952 [[alternative HTML version deleted]]

...other question, how do you decide how many components to use in "text(... labels=cutree(hcl,8), ...)"? Do you try with different values until i looks nice or what..? Best regards, Joel _________________________________________________________________ Hitta kärleken i vinter! http://dejting.se.msn.com/channel/index.aspx?trackingid=1002952 [[alternative HTML version deleted]]