withTail method

DataFrame withTail([
  1. int n = 10
])

A new data frame with only the last n rows.

Example:

print(petals.withTail(3));


.---.------------.-----------.-----------.
|id |petal_length|petal_width|species    |
:---+------------+-----------+-----------:
|102|5.1         |1.9        |virginica  |
|103|5.9         |2.1        |virginica  |
|104|5.6         |1.8        |virginica  |
'---'------------'-----------'-----------'

Implementation

DataFrame withTail([int n = 10]) {
  final numberOfRows = this.rowNumber;
  return withRowsAtIndices(
      [for (var i = math.max(0, numberOfRows - n); i < numberOfRows; i++) i]);
}