Re: [R] get rid of error in Factor Analysis

From: Andrew Robinson <A.Robinson_at_ms.unimelb.edu.au>
Date: Thu 20 Jul 2006 - 11:07:28 EST

Robert,

try try().

Andrew.

On Wed, Jul 19, 2006 at 10:27:07AM +0200, Robert Mcfadden wrote:
> Dear All,
>
> I wrote a program and there is a loop. At each iteration I use maximum
> likelihood factor analysis (?factanal). Output of factor analysis I use
> later (in this loop). Unfortunately from time to time I get an error message
> (I paste it below) and everything is stopped. Is it possible to write a
> condition that if error appears in factor analysis (FA), change input data
> for FA and do it again? Example
>
>
>
> for (i in 1:1000){
>
> FA<-factanal(data,factor=3)
>
> If error appears change data to data2 and do factor analysis again
>
> #rest of the program
>
> ............
>
> ............
>
> }
>
>
>
> Best,
>
> Robert
>
>
>
> Error in optim(start, FAfn, FAgr, method = "L-BFGS-B", lower = lower, :
>
> L-BFGS-B needs finite values of 'fn'
>
> In addition: Warning message:
>
> NaNs produced in: log(x)
>
>
>
>
>
>
>
>
>
>
> [[alternative HTML version deleted]]
>
> ______________________________________________
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-- 
Andrew Robinson  
Department of Mathematics and Statistics            Tel: +61-3-8344-9763
University of Melbourne, VIC 3010 Australia         Fax: +61-3-8344-4599
Email: a.robinson_at_ms.unimelb.edu.au         http://www.ms.unimelb.edu.au

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Received on Thu Jul 20 14:41:13 2006

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