Re: [R] lme in R and Splus-7

2007-02-06 Thread Dieter Menne
yyan liu zhliur at yahoo.com writes:

   I used the function lme in R and Splus-7. With the same dataset and same
argument for the function, I got
 quite different estimation results from these two software. Anyone has this
experience before?

From the FAQ:

R by default uses treatment contrasts in the unordered case, whereas S uses the
Helmert ones. This is a deliberate difference reflecting the opinion that
treatment contrasts are more natural.

Dietr

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[R] lme in R and Splus-7

2007-02-05 Thread yyan liu
Hi:
  I used the function lme in R and Splus-7. With the same dataset and same 
argument for the function, I got quite different estimation results from these 
two software. Anyone has this experience before?

zhong

 
-
 Get your own web address.

[[alternative HTML version deleted]]

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Re: [R] lme in R and Splus-7

2007-02-05 Thread Bert Gunter


-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of yyan liu
Sent: Monday, February 05, 2007 11:25 AM
To: r-help@stat.math.ethz.ch
Subject: [R] lme in R and Splus-7

Hi:
  I used the function lme in R and Splus-7. With the same dataset and same
argument for the function, I got quite different estimation results from
these two software. Anyone has this experience before?


 Why don't you try searching the archives yourself to see?

Bert Gunter
Genentech Nonclinical Statistics
South San Francisco, CA 94404
650-467-7374

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