rowCumprod

rowCumprod(X)

Please see rowFunctions for the parameters and calculation rules.

rowCumprod calculates the cumulative products of the elements in each row of X.

An object with the same data type as X.

m=matrix([4.5 2.6 1.5, 1.5 4.8 5.9, 4.9 2.0 NULL])
rowCumProd(m)
/* output:
col1        col2    col3
4.5 6.75    33.075
2.6 12.48   24.96
1.5 8.85    8.85
*/

a=array(INT[], 0, 10).append!([1 2 3, 4 5, 6 7 8]);
rowCumProd(a)
// output: [[1,3,6],[4,9],[6,13,21]]

tp = [[1.3,2.5,2.3], [4.1,5.3,6.2]]
tp.setColumnarTuple!()
rowCumProd(tp)
// output: [[1.3,3.25,7.475],[4.1,21.73,134.726]]