·
Identifying
Outlying Y observations
o
Studentized residuals
o
Deleted
residuals
o
Studentized deleted residuals
·
Identifying
Outlying X observations
o
Hat
matrix: Leverage
·
Identifying
Influential Cases
o
DFFits
o
Cook’s
Distance
o
DFBetas
o
Average
Absolute Percent Difference
·
Multicollinearity Diagnostics
o
Informal
diagnostics
o
Variance
Inflation Factor
·
Example:
Surgical unit data (Surgery-Ch10.sas)
·
Example:
Bodyfat data (Bodyfat-Ch10.sas)
·
Example:
Brand preference (#10.5, 10.9, 10.15)