How to replace the row's value by the original value minus the previous row's value?

iven

For example, the first row is 1,2,3. the second row is 4,6,8.
我和万t to change to the first row: 1,2,3. The second row: 3,4,5

MartinLiebig

Hi,

use lag first and then you can use generate attributes to substract.

Best,

Martin

iven

mschmitzThank you!