[R] R det

[Robin Hankin]

Hello Kalin

det() does not take a complex matrix as an argument.

To get the determinant of a complex matrix, use eigen():


mydet <- function(a){prod(eigen(a,only.values=TRUE)$values)}

a <- matrix(1:9,3,3)
a[1,1] <- 1i

mydet(a)



[List:  can we not add the above, or something like it,
to the definition of det() so that it can deal with complex matrices?]

HTH



Robin




On 16 Nov 2007, at 19:27, kalin lagno wrote:

> Hi,
> Which R function I should use to obtain determinant of a matrix  
> with real(and complex) numbers?
>
> Kalin
>
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--
Robin Hankin
Uncertainty Analyst
National Oceanography Centre, Southampton
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