I bet apply has a solution

Hi all
For the data below, I would like to return a logical value indicating
differences in the data.

#Create data
Data..<-data.frame(a=rep(1,10),b=c(rep(1,9),2),c=c(rep(1,8),2,2))

? a b c
1 ?1 1 1
2 ?1 1 1
3 ?1 1 1
4 ?1 1 1
5 ?1 1 1
6 ?1 1 1
7 ?1 1 1
8 ?1 1 1
9 ?1 1 2
10 1 2 2


So what I want is to return logical value telling me if all the values are
the same. ?So the result would be a b c DidChange
1 ?1 1 1 ? ? FALSE
2 ?1 1 1 ? ? FALSE
3 ?1 1 1 ? ? FALSE
4 ?1 1 1 ? ? FALSE
5 ?1 1 1 ? ? FALSE
6 ?1 1 1 ? ? FALSE
7 ?1 1 1 ? ? FALSE
8 ?1 1 1 ? ? FALSE
9 ?1 1 2 ? ? ?TRUE
10 1 2 2 ? ? ?TRUE

I bet apply could handle this elegantly but that family of functions is
still not 100% intuitive to me. ?Thoughts. ?Thanks everyone

Cheers,
?Josh


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