Hi, I need help in creating a dummy dataset with days 1-10 and each day with 4 timepoints for each subject. I have to merge this dummy dataset back to the original dataset so that I can get all the missing days and respective timepoints in the original dataset. Can someone help me in creating the dummy dataset with arrays. Dummy dataset should look like below one subejct day timepoint 10000     1     1 10000     1     2 10000     1     3 10000     1     4 10000     2     1 10000     2     2 10000     2     3 10000     2     4 10000     3     1 10000     3     2 10000     3     3 10000     3     4  and so on Thanks, Pradev ... View more