ExpPheno_Categorize is a function for grouping samples based on their survival to 3 groups of poor, good, and intermediate
ExpPheno_Categorize(ExpMeta_List, Time_ID, Event_ID, Mad_Factor,
MinNum_ExClass, Expression_Log2 = FALSE)List containing expression matrix and metadata matrix
Index of time to death in metadata matrix
Index of event in metadata matrix
Threshold of mad in time to death values to determine poor survival group
Minimum number of samples that has to be kept in poor and good group (if number of samples is lower than this threhold, more samples will be addedd in order of survival)
Parameter for gene expsression value transformation to logarithmic scale (log2(expression value+1))
List of expression matrices, and time to event as well as event for the patients within each category of poor, intermediate or good survival