replaceDown | R Documentation |
F matrices utility function.
replaceDown(a, b, k)
a |
The matrix to be replaced |
b |
The matrix with the replacement values |
k |
The extend of the replacement: 0 (lower part and diagonal only), 1 (lower part and first extra diagonal), in general an entry is replaced if -(row(a) - col(a)) <= k |
A matrix (same size as a)
Bertrand Frederic, Myriam Maumy-Bertrand.
a=matrix(1:9,3,3) b=matrix(1,3,3) replaceDown(a,b,0) replaceDown(a,b,1) replaceDown(a,b,2)
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