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.
Returns
An object with the same data type and form as X.
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]]
