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Scaling and Translation Transformations

Figure 32.15 shows the transformations that are available when you select Scaling/Translation from the Family list. These transformations are used to center and scale a variable. Equations for these transformations are given in Table 32.5.

Figure 32.15: Scaling and Translation Transformations

	Default	Name of
Transformation	Parameter	New Variable	Equation
center(Y)		Center_Y
stdize(Y)		Stdize_Y	See text.
reflect(Y;a)		Reflect_Y
a+b*Y		Linear_Y

The stdize(Y) transformation transforms the data to have zero mean and unit variance.

The reflect(Y) transformation reflects the data about the value .