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Rev 26310 Rev 27712
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which(LETTERS == "R")
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which(LETTERS == "R")
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which(ll <- c(TRUE,FALSE,TRUE,NA,FALSE,FALSE,TRUE))#> 1 3 7
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which(ll <- c(TRUE,FALSE,TRUE,NA,FALSE,FALSE,TRUE))#> 1 3 7
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names(ll) <- letters[seq(ll)]
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names(ll) <- letters[seq(ll)]
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which(ll)
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which(ll)
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which((1:12)\%\%2 == 0) # which are even?
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which((1:12)\%\%2 == 0) # which are even?
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str(which(1:10 > 3, arr.ind=TRUE))
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which(1:10 > 3, arr.ind=TRUE)
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( m <- matrix(1:12,3,4) )
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( m <- matrix(1:12,3,4) )
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which(m \%\% 3 == 0)
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which(m \%\% 3 == 0)
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which(m \%\% 3 == 0, arr.ind=TRUE)
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which(m \%\% 3 == 0, arr.ind=TRUE)
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rownames(m) <- paste("Case",1:3, sep="_")
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rownames(m) <- paste("Case",1:3, sep="_")