Hi, i am trying to use the normalization function from CGHcall library. The command i use is normal.fullData <- normalize(fullData, method = "median", cellularity = 1) and i get the following error message. How can i solve this issue. Error in function (classes, fdef, mtable) : unable to find an inherited method for function "copynumber", for signature "data.frame" best, salih [[alternative HTML version deleted]]