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2010 Sep 20
2
interpreting one-way anova tables
Hi, I am trying to reconcile anova table in R (summary(lm)) with individual t.test.
datafilename="http://personality-project.org/R/datasets/R.appendix1.data"
data.ex1=read.table(datafilename,header=T) #read the data into a table
summary(lm(Alertness~Dosage,data=data.ex1))
gives:
Call:
lm(formula = Alertness ~ Dosage, data = data.ex1)
Residuals:
Min 1Q Median 3Q Max
-8.500 -2.437 0.250 2.687 8.500
Coefficients:
...