Hello, The first error message says:
> Error in model.frame.default(formula = r ~ tm, drop.unused.levels = TRUE) : variable lengths differ (found for 'tm')
Please compare the size of 'r' and 'tm'. Regards, Pascal Le 14/02/2013 07:14, Craig O'Connell a écrit :
Dear R-Help, I'm using an ANOVA to determine if there is any variation that exists between my four different shark-types and their entrance behavior towards an apparatus. To do this, my coding was: df1=read.table("lemonentrance.txt", header=TRUE); df1 c(t(as.matrix(df1))) r = c(t(as.matrix(df1))) # response data r f=c("Con","Bro","OEy","Bli") k=4 n=6 tm=gl(k,1,n*k,factor(f)) tm av=aov(r~tm) Error in model.frame.default(formula = r ~ tm, drop.unused.levels = TRUE) : variable lengths differ (found for 'tm') summary(av) Error in summary(av) : object 'av' not found As you can see, I receive two error message, with teh second being a cause of the first. Does anybody have any idea how I can fix this, or at least would you happen to know what the error is referring to? Thanks and a response would be greatly appreciated. Kind Regards, Craig
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