Matrix Diagonals
Extract or replace the diagonal of a matrix, or construct a diagonal matrix with the same behaviors as diag prior to R-3.0.0.
Diag(x, ...) Diag(x) <- value
x |
A matrix, vector or 1D array, or missing. |
... |
Optional dimensions ( |
value |
Either a single value or a vector of length equal to that
of the current diagonal. Should be of a mode which can be coerced
to that of |
Started from R-3.0.0, diag(x) returns a numeric matrix with NA in the
diagonals when x is a character vector. Although this follows what the manual says, this
breaks the metaSEM. The Diag has the same functions as
diag except that Diag(x) works for a character vector of
x by returning a square matrix of character "0" with x as the
diagonals.
See http://r.789695.n4.nabble.com/Behaviors-of-diag-with-character-vector-in-R-3-0-0-td4663735.html for the discussion.
Mike W.-L. Cheung <mikewlcheung@nus.edu.sg>
v <- c("a", "b")
Diag(v)Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.