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Example 33
distributed with a mean of 0 and a standard deviation of 1. Alternatively, you can
assign a value to a boundary instead of letting Amos estimate it. To assign a value:
E Select the boundary with the mouse.
E Type a numeric value in the text box.
The following figure shows the result of assigning values 0 and 1 to the two
boundaries.
Although it may not be obvious, it is permissible to assign 0 and 1, or any pair of
numbers, to the two boundaries, as long as the higher boundary is assigned a larger
value than the lower one. No matter how many boundaries there are (as long as there
are at least two), assigning values to two of the boundaries amounts to choosing a zero
point and a unit of measurement for the underlying numeric variable. The scaling of
the underlying numeric variable is discussed further in the Help file under the topic
“Choosing boundaries when there are three categories.”
E Click OK to close the Ordered-Categorical Details dialog box.