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nrow
ncol
falses(nrow = 1, ncol = 1)trues(nrow = 1, ncol = 1)
trues(nrow = 1, ncol = 1)
fill
ones
zeros
falses(3) # column vector of FALSEs fill(FALSE, 3) resize(as.logical(zeros(3)), 3) trues(2, 3) # 2-by-3 matrix of TRUEs fill(TRUE, 2, 3) resize(as.logical(ones(2, 3)), 2, 3)
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