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2012 Apr 03
1
Fisher's LSD multiple comparisons in a two-way ANOVA
...69, 74, 72, 72, 76, 69, 69, 82, 79, 81) a <- rep(c("A1","A2"), each = 24) b <- rep(c("B1","B2","B3"), each =8, times = 2) a <- factor(a) b <- factor(b) x.aov <- aov(x~a*b) I hope to obtained the results similar with" http://www.gigawiz.com/images12/twowayrmposthoc.jpg Any suggestions or comments will be really appreciated. Regards, Jinsong
2012 Mar 25
2
avoiding for loops
I have data that looks like this: > df1 group id 1 red A 2 red B 3 red C 4 blue D 5 blue E 6 blue F I want a list of the groups containing vectors with the ids. I am avoiding subset(), as it is only recommended for interactive use. Here's what I have so far: df1 <- data.frame(group=c("red", "red", "red", "blue",