Figure 32.15 shows the transformations that are available when you select from the 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
Table 32.5: Description of 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
transformation transforms the data to have zero mean and unit variance.The
transformation reflects the data about the value .