Creating lag and differen variables

[srk80]

Hi,

Is there any function to create lag and first, second, ... difference variables in Jamovi?

Thanks.

[jonathon]

does the OFFSET() function do what you need?

Screenshot 2025-10-14 at 11.07.35.png (388.79 KiB) Viewed 1135 times

[srk80]

Yes. This is what I need. But Lag, Lead, diff are more used verbs in econometrics.

Lag -> OFFSET(A, 1)
Lead -> OFFSET(A, -1)
diff_1 -> A - OFFSET(A, 1)
diff_2 -> A - OFFSET(A, 2)

[jonathon]

great. so you're sorted then?

jonathon

[srk80]

Yes. I got the desired results. But please include these functions lag, lead, diff too in future versions. Followup question, is there any possibility that any one create a time series module based on fpp2 or fpp3?

[jonathon]

it would certainly be possible if someone had the time and motivation.

a wrinkle is that jamovi doesn't currently support datetime data types.

jonathon