Displaying 1 result from an estimated 1 matches for "mynewadlgroup".
2002 Oct 11
1
automatic chi-square grouping in R
I'm doing some chi-square tests, and I recall some arbitrary rule that says each band must have at least 5 events in order for the test to be meaningful. Is there some way to do the banding automagically in R ? For instance, in the following survdiff, I'm trying to see if ADL affects survival. But when ADL=3,5 and 6, the number observed is too little. Anyway for me to tell R how to group