051114 2130
@ added contingency table for continuous Atgt in the initial test tab, with chi-squared test
@ discovered a bug regarding c(">= mean","< mean"), all the tables labeled using Groupings are wrongly labeled on the colnames. changed to c("above/equal mean","below mean")
@ major change to Data2(): discretized by mean for cont. Atgt is now the first step, instead of subsetting the data using items in Cinitial first. This makes more sense, as when user i/p discretization is implemented, discretization using user's threshold should come first before contexting the data (although in this case it doesnt matter).
@ changes the names of some of the renderTables() for tests to give more meaningful names