search for: menelaos

Displaying 7 results from an estimated 7 matches for "menelaos".

Type III sum of squares and appropriate contrasts
2007 Oct 11
2
Type III sum of squares and appropriate contrasts
...t;An R and S-Plus Companion to Applied Regression" approach -p. 140- suggesting that treatment contrasts do not usually result in meaningful results with Type III SS but it's not clear to me why. Any suggestions on a stats text discussing this would be greatly appreciated. Thanks, Mel -- Menelaos Stavrinides Ph.D. Candidate Environmental Science, Policy and Management 137 Mulford Hall MC #3114 University of California Berkeley, CA 94720-3114 USA Tel: 510 717 5249
Type I and Type III SS in anova
2008 Sep 26
1
Type I and Type III SS in anova
...15764.9249 < 2e-16 *** temp 0.08571 3 782.6314 < 2e-16 *** sex 0.00023 1 6.2851 0.01303 * temp:sex 0.00015 3 1.4073 0.24206 Residuals 0.00683 187 --- Signif. codes: 0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1 -- Menelaos Stavrinides Ph.D. Candidate Environmental Science, Policy and Management 137 Mulford Hall MC #3114 University of California Berkeley, CA 94720-3114 USA Tel: 510 717 5249 [[alternative HTML version deleted]]
Unrealistic dispersion parameter for quasibinomial
2009 Mar 02
2
Unrealistic dispersion parameter for quasibinomial
...7 0.995 lwpm -5.119 2323.044 -0.002 0.998 (Dispersion parameter for quasibinomial family taken to be 2501139) Null deviance: 441.20 on 7 degrees of freedom Residual deviance: 48.81 on 5 degrees of freedom AIC: NA Number of Fisher Scoring iterations: 8 Thanks, Mel -- Menelaos Stavrinides Ph.D. Candidate Environmental Science, Policy and Management 137 Mulford Hall MC #3114 University of California Berkeley, CA 94720-3114 USA Tel: 510 717 5249 [[alternative HTML version deleted]]
Wide confidence intervals or Error message in a mixed effects model (nlme)
2011 Jul 25
2
Wide confidence intervals or Error message in a mixed effects model (nlme)
...ears when the model is not well-specified, but I do not see an alternative way of specifying the model. Any ideas as to why I get wide confidence intervals or the error message? Any recommendations on other possibilities for analyzing the data are greatly appreciated. Thank you very much, Menelaos Menelaos Stavrinides Lecturer, Dept. of Agricultural Sciences Cyprus University of Technology P.O. Box 50329, 3603 Limassol, Cyprus Tel.: + 357 25002186 Fax: + 357 25002767 Email: m.stavrinides@cut.ac.cy <html> <body> <img src="http://www.cut.ac.cy/images/envir...
t.test (PR#1086)
2001 Sep 08
1
t.test (PR#1086)
Full_Name: Menelaos Stavrinides Version: 1.3. 1 OS: Windows 98 Submission from: (NULL) (193.129.76.90) When model simplification is used in glm (binomial errors) and anova is used two compare two competitive models one can use either an "F" or a "Chi" test. R always performs an F test (Although...
lme anova() and model simplification
2009 Mar 09
1
lme anova() and model simplification
...int int int int int int int south south south south [13] south south Levels: int south > viney [1] lpsm06 lwsm06 mpsm06 mwsm06 lpsm07 lwsm07 mpsm07 mwsm07 lpsm06 lwsm06 [11] mwsm06 lpsm07 lwsm07 mwsm07 Levels: lpsm06 lpsm07 lwsm06 lwsm07 mpsm06 mpsm07 mwsm06 mwsm07 -- Menelaos Stavrinides Ph.D. Candidate Environmental Science, Policy and Management 137 Mulford Hall MC #3114 University of California Berkeley, CA 94720-3114 USA Tel: 510 717 5249 [[alternative HTML version deleted]]
Analysis of unbalanced data in nlme or car
2011 Jul 20
0
Analysis of unbalanced data in nlme or car
...age [model<-aov(growth.rate~pestA*pestB+Error(block))], but when I run Anova(model,type=c("3")) I get the following error message: Error in as.data.frame.default(data, optional = TRUE) : cannot coerce class '"function"' into a data.frame Thank you very much, Menelaos Stavrinides Lecturer, Dept. of Agricultural Sciences Cyprus University of Technology P.O. Box 50329, 3603 Limassol, Cyprus Tel.: + 357 25002186 Fax: + 357 25002767 Email: m.stavrinides@cut.ac.cy [[alternative HTML version deleted]]