Test for fixed diagonal
Check if an object has fixed diagonal
fixdiag(x, ...) fixdiag(x, ...) <- value ## S3 method for class 'ff' fixdiag(x, ...) ## Default S3 method: fixdiag(x, ...) ## S3 method for class 'dist' fixdiag(x, ...)
x |
an ff or ram object |
value |
assignement value |
... |
further arguments (not used) |
ff symmetric matrices can be declared to have fixed diagonal at creation time. Compatibility function fixdiag.default returns NULL, fixdiag.dist returns 0.
NULL or the scalar representing the fixed diagonal
Jens Oehlschlägel
fixdiag(matrix(1:16, 4, 4)) fixdiag(dist(rnorm(1:4)))
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