rowCount
Syntax
rowCount(args…)
Please see Row-Based Functions for the parameters and calculation rules.
Details
Return the number of non-null elements in each row of the arguments.
Examples
$ m=matrix([4.5 2.6 1.5, 1.5 4.8 5.9, 4.9 2.0 NULL]);
$ rowCount(m);
[3,3,2]
$ t1=table(1 NULL 3 NULL 5 as x, 6..10 as y);
$ t2=table(5 NULL 3 NULL 1 as a, 10..6 as b);
$ rowCount(t1);
[2,1,2,1,2]
$ rowCount(t1[`x], t2, 1 NULL 2 NULL NULL);
[4,1,4,1,3]
$ t=table(`AAPL`MS`IBM`IBM`C as sym, [49.6, NULL, 29.52, NULL, 174.97] as price1, [175.23, NULL, 50.32, 51.29, 26.23] as price2);
$ select sym,rowCount(price1,price2) as count from t;
sym |
count |
---|---|
AAPL |
2 |
MS |
0 |
IBM |
2 |
IBM |
1 |
C |
2 |