lower.tri

Mengembalikan matriks logika dengan ukuran yang sama dengan matriks tertentu dengan entri TRUE di segitiga bawah atau atas.

Syntax

R Copy

lower.tri(x, diag = FALSE)
upper.tri(x, diag = FALSE)

Arguments

Parameter	Deskripsi
x	a matrix or other R object with length(dim(x)) == 2. For back compatibility reasons, when the above is not fulfilled, as.matrix(x) is called first.
diag	logical. Should the diagonal be included?

Contoh

Example

R Copy

# NOT RUN {
(m2 <- matrix(1:20, 4, 5))
lower.tri(m2)
m2[lower.tri(m2)] <- NA
m2
# }

See Also

diag matrix; further row and col on which lower.tri() and upper.tri() are built.