One-argument form See also two-argument form Index of
¼ generates a series of integers which start at the index origin (ŒIO) and whose length is specified by the right argument which must be 0 or a positive integer scalar. The examples below assume the default index origin of 1 (see ŒIO for more details). The argument to ¼ must be a simple numeric scalar or one-element vector.
ŒIO (Default setting of ŒIO) 1
To generate the series from 1 to 10:
¼ 10 1 2 3 4 5 6 7 8 9 10
To generate the series 1 to 5 to be used in selecting the first five elements from a vector (see separate entry for [ ]):
PRICE„29 4 61 5 88 2 18 90 3 201 12 53 27 80 PRICE[¼ 5] 29 4 61 5 88
To generate a vector of five elements containing the series 1, 1 2, and so on, use the ¨ ('each') operator.
¼¨¼5 1 1 2 1 2 3 1 2 3 4 1 2 3 4 5
A common mechanism to generate an empty vector is:
¼0 (No display)