Dear David, You've found a bug in Anova() for linear models that was introduced some time ago when the linear.hypothesis() function [which is used by Anova()] was modified not to report sums of squares for "White-adjusted" tests. I have to think about should be done in this case.
Sorry, John -------------------------------- John Fox, Professor Department of Sociology McMaster University Hamilton, Ontario Canada L8S 4M4 905-525-9140x23604 http://socserv.mcmaster.ca/jfox -------------------------------- > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of David Kaplan > Sent: Friday, August 24, 2007 3:55 PM > To: r-help@stat.math.ethz.ch > Subject: [R] An issue with White's test in Anova > > Hi all, > > I'm running White's test to correct for non-constant error > variance and I am using the Anova function in the package > CAR. My command structure is > > > Anova(scireg3, white.adjust="hc3") > > where scireg3 is an object from lm. > > I get the message > > "Error in SS[i] <- SS.term(names[i]) : nothing to replace with" > > What does this mean and how do I fix it. > > Thanks in advance. > > David > > > > > -- > ============================================================== > ============= > David Kaplan, Ph.D. > Professor > Department of Educational Psychology > University of Wisconsin - Madison > Educational Sciences, Room, 1061 > 1025 W. Johnson Street > Madison, WI 53706 > > email: [EMAIL PROTECTED] > homepage: > http://www.education.wisc.edu/edpsych/facstaff/kaplan/kaplan.htm > Phone: 608-262-0836 > > ______________________________________________ > R-help@stat.math.ethz.ch mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide > http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. > ______________________________________________ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
