Displaying 1 result from an estimated 1 matches for "pp913".
Did you mean:
13913
2005 Aug 02
1
Hmisc / Design question
All,
I have been reading Dr. Harrell's excellent
"Regression Modeling Strategies" book and trying out
the exercises. I understand that contrast( ) is used
to obtain contrasts between two variables for given
levels of other nuisance variables; is there a way
to use contrast( ) to obtain, for example, Scheffe
confidence intervals / hypothesis tests for many
post hoc contrasts at