Replaces the result variable with the sum of all the elements of the input vector. If one or more elements are "Missing", represented by a "." or "NaN", then the sum will be NaN. To avoid this, you can CLEAN the input vector before summing it. |
COPY 1,5 A SUM A B PRINT A B The above program produces the following output: A: (1.0 2.0 3.0 4.0 5.0) B: 15.0 |