search for: antibacterial

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2009 Mar 29
2
re form data for aov()?
I have data in a file named hands.dat, which is given at the end of this question. (It's from a stats textbook example on anova). I'd like to do an aov on this, which I guess would be d <- read.table("~/hands.dat", header=TRUE) aov(Bacterial.Counts ~ Water + Soap + Antibacterial.Soap + Alcohol.Spray, data=d) but this fails. Do I need to break d$Method up into columns for each category, with boolean entries? Or is there a way to do this more cleanly? Data file (hands.dat) ============ Bacterial.Counts Method 74 Water 84 Soap 70 Antibacterial.Soap...