[R] mixture of 2 normals - starting values

Tatiana Benaglia tab321 at stat.psu.edu
Fri Feb 23 13:54:56 CET 2007


Hi,
you can also look at the function normalmix.init in the mixtools  
package.

Tatiana

Tatiana Benaglia
Ph.D. Candidate
Department of Statistics
Penn State University


On Feb 23, 2007, at 12:02 AM, apjaworski at mmm.com wrote:

> Hi,
>
> I have a problem of estimating a mixture of two normal  
> distributions.  I
> need to find the starting points automatically, since this is a  
> part of a
> larger piece of image processing code.
>
> I found the mix2normal1 function in VGAM package that mentions a  
> method of
> finding starting values for mu1 and mu2 but refers the reader to a  
> book by
> Everitt and Hand.  Unfortunately, I do not have an easy access to this
> book.  Could anybody point me to a description of the method that I  
> could
> use?
>
> Any help will be appreciated.  Thanks in advance,
>
> Andy
>
> __________________________________
> Andy Jaworski
> 518-1-01
> Process Laboratory
> 3M Corporate Research Laboratory
> -----
> E-mail: apjaworski at mmm.com
> Tel:  (651) 733-6092
> Fax:  (651) 736-3122
>
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