[R] precision of std. error in summary

Berton Gunter gunter.berton at gene.com
Fri Feb 10 19:56:32 CET 2006


1. ?options  (Look for "scipen")

2. std error = Value/t value

3. Why do you care with these values?! Seems silly. It's probably off by
more than you're worrying about due to numerical error, deviation from
assumptions, arbitrariness of tuning constants, etc.

-- Bert Gunter
Genentech Non-Clinical Statistics
South San Francisco, CA
 
"The business of the statistician is to catalyze the scientific learning
process."  - George E. P. Box
 
 

> -----Original Message-----
> From: r-help-bounces at stat.math.ethz.ch 
> [mailto:r-help-bounces at stat.math.ethz.ch] On Behalf Of Angelo Secchi
> Sent: Friday, February 10, 2006 10:44 AM
> To: r-help at stat.math.ethz.ch
> Subject: [R] precision of std. error in summary
> 
> 
> Hi,
> I'm doing robust regression with the following command
> 
> rlm(dip~ind1+ind2-1,method="M",psi=psi,maxit=1000,acc=1e-15)
> 
> now when I ask for a summary
> 
> summary(rlm(dip~ind1+ind2-1,method="M",psi=psi,maxit=1000,acc=1e-15))
> 
> I get
> 
> Coefficients:
>      Value       Std. Error  t value    
> ind1     -0.0377      0.0000 -24203.1415
> ind2      1.0370      0.0000 668735.7195
> 
> taht is no std error
> 
> I've already tryied puuting a "digits = 6" with no success.
> What is the proper way to ask R to provide more digits in the 
> std error? 
> Thanks
> 
> 
> -- 
> ========================================================
>  Angelo Secchi                     PGP Key ID:EA280337
> 
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