[R] estimating missing data

Liaw, Andy andy_liaw at merck.com
Fri Jul 26 18:14:56 CEST 2002


Not sure if this is what you want:  From the help page for the function
`em.norm' in the package `norm':

EM algorithm for incomplete normal data

Description:

     Performs maximum-likelihood estimation on the matrix of incomplete
     data using the EM algorithm. Can also be used to find a posterior
     mode under a normal-inverted Wishart prior supplied by the user.

Andy

> -----Original Message-----
> From: Xavier.Abulker at fimat.com [mailto:Xavier.Abulker at fimat.com]
> Sent: Friday, July 26, 2002 11:51 AM
> To: r-help at stat.math.ethz.ch
> Subject: [R] estimating missing data
> 
> 
> Hello R group
> 
> Do you know if an EM algorithm exits for R to estimate 
> missing data in a
> sample?
> I just found knn algorithm in to the package emv but it 
> doesn't look to be
> the usual EM algorithm.
> Thanks
> Xavier
> 
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