Hi all,
I want to calculate in each row a ratio based on number in the current row and
the previous row.
Is there a way to do this without for-loops because that is extremely slow.
A B
[1] 2 2
[2] 2 3
[3] 4 5,5
...
B2 = A2 + 0.5*B1
Thanks in advance.
Best
Marcus
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