standar error for the fixed effects

Thank you for the hint. I've even tried it but it?did not?give any standard error for the fixed effects.



----- Original Message ----
From: Ken Beath <ken at kjbeath.com.au>
To: FMH <kagba2006 at yahoo.com>
Cc: r-sig-mixed-models at r-project.org
Sent: Thursday, September 24, 2009 11:52:31 AM
Subject: Re: [R-sig-ME] standar error for the fixed effects

summary(fm1)

Obtaining a copy of Pinheiro and Bates is strongly recommended.

Ken

Dear All,

Herewith, is a sample of mixed model command from the help menu.

fm1 <- lme(distance ~ age, data = Orthodont) # random is ~ age
fm1

I noticed that there is no standard error for the fixed effects.? 
Could someone advice me the way to extract it?

Thank you
Fir

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