tail
Syntax
tail(obj, [n=1])
Arguments
obj is a vector/matrix/table.
n (optional) is a positive integer. The default value is 1.
Details
Return the last n element(s) of a vector, or the last n columns of a matrix, or the last n rows of a table.
Examples
x=1..10;
tail(x);
// output: 10
tail(x,2);
// output: [9,10]
x=1..10$2:5;
x;| #0 | #1 | #2 | #3 | #4 |
|---|---|---|---|---|
| 1 | 3 | 5 | 7 | 9 |
| 2 | 4 | 6 | 8 | 10 |
x.tail();
// output: [9,10]
tail(x,2);| #0 | #1 |
|---|---|
| 7 | 9 |
| 8 | 10 |
x=table(1..5 as a, 6..10 as b);
x;| a | b |
|---|---|
| 1 | 6 |
| 2 | 7 |
| 3 | 8 |
| 4 | 9 |
| 5 | 10 |
tail(x);
/* output:
b->10
a->5
*/
x.tail(2);| a | b |
|---|---|
| 4 | 9 |
| 5 | 10 |
Related function: head