Create/extract 'reverse'-diagonal matrix or off-diagonal elements
Create/extract 'reverse'-diagonal matrix or off-diagonal elements
revdiag(x,...) offdiag(x,type=0,...) revdiag(x,...) <- value offdiag(x,type=0,...) <- value
x |
vector |
... |
additional arguments to lower level functions |
value |
For the assignment function the values to put in the diagonal |
type |
0: upper and lower triangular, 1: upper triangular, 2: lower triangular, 3: upper triangular + diagonal, 4: lower triangular + diagonal |
Klaus K. Holst
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