rowPrev
Syntax
rowPrev(X)
Please see rowFunctions for the parameters and calculation rules.
Details
For each row in X, rowPrev shifts the elements to the right
for one position.
Examples
m=matrix([4.5 2.6 1.5, 1.5 4.8 5.9, 4.9 2.0 NULL])
rowPrev(m) | col1 | col2 | col3 |
|---|---|---|
| 4.5 | 1.5 | |
| 2.6 | 4.8 | |
| 1.5 | 5.9 |
a=array(INT[], 0, 10).append!([1 2 3, 4 5, 6 7 8]);
rowPrev(a)
// output
[[00i,1,2],[00i,4],[00i,6,7]]
tp = [[1.3,2.5,2.3], [4.1,5.3,6.2]]
tp.setColumnarTuple!()
rowPrev(tp)
// output
[[00F,1.3,2.5],[00F,4.1,5.3]]