Displaying 1 result from an estimated 1 matches for "precense".
Did you mean:
prescense
2003 May 04
1
array question on indexing
Dear friends,
I have struggled to do what is likely rather simple but cannot get it working.
I have a dataframe with 428 obs. of 5 variables on 26 patients. Two
variables are responses, one an index of patients (1:26), one a
period-indicator :1 :max 3, and one total time from min 1 to max 36 weeks
(max 21 entries). A complete set would be 26*21=546 long but here are only
428 entries.
Now,