All options valid on n statements can be used in grid axes, with the exception of rej=.

Incs in grid axes can be specified in two ways. The first is to use the standard notation, for example:

The second is to define it with a number, and then to call it up using that number. On the column n01 statement the column whose contents are to be used as the increment is identified with the option:

where n is a whole number. Then, it is called up on an n25 as follows:

To illustrate this, go back to the rating question discussed at the beginning of the Grid axes section. Respondents have been asked to rate four products on a scale of 1 (Excellent) to 5 (Very poor), and you want to calculate a mean score.

The axis you would write to do this is as follows: