cumfirstNot
Syntax
cumfirstNot(X, [k])
Please see cumFunctions for the parameters and windowing logic.
Details
Return the last element of X that is not k. If k is unspecified, return the last non-NULL element.
Examples
x=[NULL,1,2,6,NULL,3,4,NULL]
cumfirstNot(x);
// output
[,1,1,1,1,1,1,1]
cumfirstNot(x, 1)
// output
[,,2,2,2,2,2,2]
m=matrix(1 2 3 NULL 4, NULL NULL 8 8 9);
m;| #0 | #1 |
|---|---|
| 1 | |
| 2 | |
| 3 | 8 |
| 8 | |
| 4 | 9 |
cumfirstNot(m);| #0 | #1 |
|---|---|
| 1 | |
| 1 | |
| 1 | 8 |
| 1 | 8 |
| 1 | 8 |
Related function: firstNot