On Sat, 4 Jun 2022, Sven Schreiber wrote:
Am 03.06.2022 um 22:46 schrieb Cottrell, Allin:
Note: we currently assess rank using regular QR, by counting the
R elements greater than some specified "tiny" value.
Aha? The doc for "rank" says: "numerically computed via the singular
value decomposition" - so that's not true anymore?
The hansl rank() function does use SVD as advertised, but internally
we use QR to assess rank in some contexts, using the approach
illustrated in Jack's reply.
Allin
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