contextCount
Syntax
contextCount(X, Y)
Arguments
X and Y are vectors of the same length.
Details
Count the number of positions that are not NULL in both X and Y.
Examples
$ contextCount(1 2 3, 1 NULL 3)
2
$ contextCount(1..3,true false true)
3
$ contextCount(1 2 NULL, 1 NULL 3)
1
Related functions: contextSum, contextSum2