1. 2007-03-25 [R-sig-ME] fixed effects correlated with the intercep r-sig-mix John Maindonald 2. 2007-03-24 [R-sig-ME] fixed effects correlated with the intercep r-sig-mix Austin Frank 3. 2007-03-23 [R-sig-ME] fixed effects correlated with the intercep r-sig-mix John Maindonald 4. 2007-03-23 [R-sig-ME] fixed effects correlated with the intercep r-sig-mix Austin Frank