Roling Calculation

Hi all How can I do some rolling calculations ? The ideia is to get something like the following table

Data1 Data2 DataVal calculated
row1 x 1 0
row2 y 3 calc(row2)=dataval(row1)-dataval(row2)
row3 z 4 calc(row3)=dataval(row2)-dataval(row3)
row4 c 7 calc(row4)=dataval(row3)-dataval(row4)

Thanks !

One quick idea is to use the Moving Aggregation node in combination with a Math Formula node. Please see my screenshot attached to this post.


Top !