[R] implementation of matrix logarithm (inverse of matrix exponential)

[Charles C. Berry]

On Sat, 26 Sep 2009, Gabor Grothendieck wrote:

> Try:
>
> expm( - M)

Mimosa probably meant say 'the inverse function'.

I do not see one in R.

Chuck

>
> On Sat, Sep 26, 2009 at 5:06 PM, Mimosa Zeus <mimosa1879 at yahoo.fr> wrote:
>> Dear R users,
>>
>> Does anyone has implemented the inverse of the matrix exponential (expm in the package Matrix)?
>>
>> In Matlab, there're logm and expm, there's only expm in R.
>> Cheers
>> Mimosa
>>
>>
>>
>>        [[alternative HTML version deleted]]
>>
>>
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>>
>>
>
> ______________________________________________
> R-help at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>

Charles C. Berry                            (858) 534-2098
                                             Dept of Family/Preventive Medicine
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