
6 Fit Y by X Platform Fitting Commands and General Options 151
6 Fit Y by X: Comparing Two Variables
Upper 95% The upper endpoint of the 95% confidence interval for the parameter estimate.
Std Beta The standardized parameter estimate. It is useful for comparing the effect of X variables
that are measured on different scales.
VIF The variance inflation factor.
Design Std Error The design standard error for the parameter estimate.
Fit Special
Using the Fit Special command, you can transform Y and X. Transformations include the following:
log, square root, square, reciprocal, and exponential. You can also constrain the slope and intercept, fit
a polynomial ...