I have a really pressing need - and I have tried everything that I know. At this point I am not even sure it can be done with JMP, but I thought I ask the Experts!
I have many records like the one below
A B C D E
1182401337948T 07/22/2009 DDDD 999999 1
1182401337948T 07/22/2009 SSSS 0 1
What I need is for every record that has D=0 and the A and B columns are the same as to the record above - I need to create a new code DDDDSSSS and associate it with both rows
Do you think this can be done in JMP?
I think you could do it in two steps (someone might have a one step solution for you but this was quick)
Add a column F with the formula:
if (:D == 0 & Lag(:A, 1) = :A , "DDDDSSSS", Empty())
Then add a column G with the formula:
If(:F[Row() + 1] == "DDDSSS", "DDDSSS", :F)
Building on what Karen provided...
Copy and paste into your column. I named the new column "Recoded Column".
If(Lag(:A, 1) == :A & :D == 0, Lag(:C, 1) || :C; :Recoded Column[Row() - 1] = Lag(:C, 1) || :C, :C)
Thank you Stan ! You are genius! This worked beautifully and did exactly what I was looking for.