[Rd] prcomp need Conj(t(s$vt)) (PR#2924)

[Prof Brian Ripley]

On Mon, 5 May 2003 pgilbert at bank-banque-canada.ca wrote:

> In prcomp
> 
>         s <- La.svd(x, nu = 0)
>         s$v <- t(s$vt)
> 
> the second above line should be 
> 
>         s$v <- Conj(t(s$vt))
> 
> (to cover complex cases).

They are not covered in the help page, AFAICS.

They are certainly not covered in the references quoted.

Are you not jumping to conclusions?  There is a lot of R that does not 
handle complex cases, and does not say so. (lm, for one.)

-- 
Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
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