cumPositiveStreak
Syntax
cumPositiveStreak(X)
Please see Cumulative Window Functions (cum-functions) for the parameters and windowing logic.
Details
Cumulatively calculate the sum of consecutive positive elements of X after the last non-positive element to the left.
Examples
$ x=1 0 -1 1 2 2 2 1 0 -1 0 2;
$ cumPositiveStreak x;
[1,0,0,1,3,5,7,8,0,0,0,2]
$ m=matrix(1 0 -1 1 2 2 2 1 0 -1 0 2, -1 -2 -1 0 1 3 6 7 0 -1 -2 0);
$ m;
#0 |
#1 |
|---|---|
1 |
-1 |
0 |
-2 |
-1 |
-1 |
1 |
0 |
2 |
1 |
2 |
3 |
2 |
6 |
1 |
7 |
0 |
0 |
-1 |
-1 |
0 |
-2 |
2 |
0 |
$ cumPositiveStreak(m);
#0 |
#1 |
|---|---|
1 |
0 |
0 |
0 |
0 |
0 |
1 |
0 |
3 |
1 |
5 |
4 |
7 |
10 |
8 |
17 |
0 |
0 |
0 |
0 |
0 |
0 |
2 |
0 |