Description Usage Arguments Value Author(s) See Also Examples

Lower/upper triangular matrix.

1 2 | ```
is.lower.tri(x, diag = FALSE)
is.upper.tri(x, diag = FALSE)
``` |

`x` |
A matrix with data. |

`diag` |
A logical value include the diagonal to the result. |

Check if a matrix is lower or upper triangular. You can also include diagonal to the check.

Manos Papadakis

R implementation and documentation: Manos Papadakis <papadakm95@gmail.com>.

1 2 3 4 5 6 7 8 | ```
x <- matrix(runif(10*10),10,10)
is.lower.tri(x)
is.lower.tri(x,TRUE)
is.upper.tri(x)
is.upper.tri(x,TRUE)
``` |

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