Hi I would like to calculate the AUC following the formula below.
In order to do this I need to use the data from the previous row. I wrote my code like this:
However the output data is missing the AUC for the second row like below
How could I fix it?
Don't include LAG in an IF statement or the ELSE clause.
Example:
prev_value=lag(value);
if x>5 then z=value;
else if x<=5 then z=prev_value;
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