Argument: Integer vector
Result: None
Valid for: Grid
The Insertrows method takes an argument which is a
vector of positions at which you wish to insert new rows in a Grid object. You can specify integers (for example 5 means
'insert before the current row 5'), or non-integers (for example 4.5
means 'insert between the current rows 4 and 5'). After the insertion, the rows are
re-numbered to form an integer sequence starting at 1. Thus, if you insert at 5
and 6, the new rows become numbers 5 and 7. To insert three new rows before the current second one,
specify 2 2 2.