Hi everyone, I got the next dataset:
The idea is imputed only the missing value of the last visits with LOCF, the missing intermediate visits remaining missing, and the carried baseline (i.e week2) if it is missing remaining missing.
In Bold face I show the visits need to be imputed with LOCF
data new;
input subjid week value;
datalines;
1 Baseline 10
1 Week2 12
1 week8 14
1 week12 16
2 baseline 12
2 week2 4
2 week8 14
3 Baseline 13
3 week4 5
3 week12 2
4 baseline 1
4 week2 3
5 Baseline 3
5 Week2 5
5 week12 6
run;
and I am looking for the want dataset:
1 Baseline 10
1 Week2 12
1 week8 14
1 week12 16
2 baseline 12
2 week2 4
2 week8 14
2 week12 14
3 Baseline 13
3 week4 5
3 week12 2
4 baseline 1
4 week2 3
4 week4 3
4 week8 3
4 week12 3
5 Baseline 3
5 Week2 5
5 week12 6
I hope you can help me.
Thnaks.
V.
