cumwsum
Syntax
cumwsum(X, Y)
Please see Cumulative Window Functions (cum-functions) for the parameters and windowing logic.
Details
Calculate the cumulative weighted sum of X with Y as the weights. The result is a vector of the same length as X. Null values are ignored in the calculation.
Examples
$ cumwsum(2.2 1.1 3.3, 4 5 6);
[8.8,14.3,34.1]
$ cumwsum(1 NULL 1, 1 1 1);
[1,1,2]
Related function: wsum