I have a data set new.csv attached which has times 4.5, 7.5, 9, and 10.5 for which the variables DV, amt, evid, wt , and sex are missing.
These values for subjects 1 and 2 are located at the preceding times (i.e., 4, 6, 8 and 10). I need to populate the .4.5, 7.5, 9, and 10.5 time points with the data from the preceding time point. For example what I want for subject 1 at 4.5 hours is to populate all of the 24 cmts at 4.5 hrs with dv=0, amt=0 , evid=2 , wt =23, and sex =1 which are the values just preceding the 4.5 time. I need this done for the 7.5, 9, and 10.5 time points for each subject. I actually have 15 subjects but are showing only 2
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