Folding Array with Index

Chun

The fold array step in Prep Recipe is very useful. I would like to create a new column to keep track of the folded array element, basically to store the array index in a new column. How do I do it in code?

Alan_Fusté

Hi,

I would create a Python (or R) recipe to do that... I think that with the Formula action you can only interact with columns (in each row) but not with rows