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2009 Nov 09
1
Getting Sphericity Tests for Within Subject Repeated Measure Anova (using "car" package) (Adjusted Dataset)
...set below). I am able to get either mixed model or linear model anova and TukeyHSD, but have no luck with Repeated-Measures Assuming Sphericity or Separate Sphericity Tests. I am trying to follow example from "car" package, but it seems that I am not getting something right. > Dataset$Sessn <- as.factor(Dataset$Sessn) > LinearModel.1 <- lm(Response ~ Sessn*Trtmt, data=Dataset) > summary(LinearModel.1) All, good so far, but I have problem understanding "idata=" and "idesign=" functions pertaining to my example. Session is my repeated measure (Sessn 1...
2009 Nov 09
1
Getting Sphericity Tests for Within Subject Repeated Measure Anova (using "car" package)
...set below). I am able to get either mixed model or linear model anova and TukeyHSD, but have no luck with Repeated-Measures Assuming Sphericity or Separate Sphericity Tests. I am trying to follow example from "car" package, but it seems that I am not getting something right. > Dataset$Sessn <- as.factor(Dataset$Sessn) > LinearModel.1 <- lm(Response ~ Sessn*Trtmt, data=Dataset) > summary(LinearModel.1) All, good so far, but I have problem understanding "idata=" and "idesign=" functions pertaining to my example. Session is my repeated measure (Sessn 1...