makeuppertri: Make an upper triangular matrix

In vincenzocoia/copsupp: Vine Copulas made easy

Description

Upper triangular matrix making made easy.

Usage

makeuppertri(
  entries,
  row,
  col,
  blanks = 0,
  byRow = TRUE,
  incDiag = FALSE,
  nrow = NULL,
  ncol = NULL
)

makeuppertri.list(
  entries,
  len,
  row,
  col,
  blanks = list(),
  byRow = TRUE,
  incDiag = FALSE,
  nrow = NULL,
  ncol = NULL
)

Arguments

entries	Vector of entries for the upper triangular part of the matrix.
row	Number of rows in the matrix
col	Number of columns in the matrix
blanks	What should go in the non-diagonal entries?
byRow	Logical; read the entries by row (as if you're reading) (TRUE), or read in vertically (FALSE).
incDiag	Should the entries go on the diagonal too? TRUE if so, FALSE if not.
nrow, ncol	When I first made this function, I used row and col, but I should have called them nrow and ncol. Hence this addition.
len	Vector of positive integers which specify the lengths of the individual vectors that are pooled in entries.

Note

Use makeuppertri to make a matrix. If you want entries to be vectors (which would have to be an array with list entries), use makeuppertri.list.

Examples

## Square matrices
makeuppertri(1:choose(5,2), 5, 5)
makeuppertri(1:choose(6,2), 5, 5, incDiag = TRUE)

## Not square.
makeuppertri(1:9, row = 2, col = 5, incDiag = TRUE)
makeuppertri(1:3, row = 5, col = 3)
## List entries
(M <- makeuppertri.list(1:12, c(1, 10, 1), 3, 3))
M[1, 2]   # A list of length one.
M[1, 3]   # Another list of length one.
(M <- makeuppertri.list(1:3, rep(1,3), 3, 3))
M[1, 2]   # Still a list of length one.

vincenzocoia/copsupp documentation built on Aug. 23, 2020, 7:37 a.m.