Basic Analysis and Graphing - SAS

Chapter 4 Performing Bivariate Analysis 111
Density Ellipse
The following table describes the Orthogonal Regression report.
Table 4.12 Description of the Orthogonal Regression Report
Variable
Mean
Std Dev
Variance Ratio
Correlation
Intercept
Slope
LowerCL
UpperCL
Alpha
Gives the names of the variables used to fit the line.
Gives the mean of each variable.
Gives the standard deviation of each variable.
Gives the variance ratio used to fit the line.
Gives the correlation between the two variables.
Gives the intercept of the fitted line.
Gives the slope of the fitted line.
Gives the lower confidence limit for the slope.
Gives the upper confidence limit for the slope.
Enter the alpha level used in computing the confidence interval.
Related Information
• “Fitting Menus” on page 115
• “Statistical Details for Fit Orthogonal” on page 124
• “Example Using the Fit Orthogonal Command” on page 120
Density Ellipse
Using the Density Ellipse option, you can draw an ellipse (or ellipses) that contains the specified mass of
points. The number of points is determined by the probability that you select from the Density Ellipse
menu).