@stat.math.ethz.ch
*Subject:* Re: [R] Variance Components in R
I am trying to replicate Finn and Kayandé (1997) study on G-theory
application on Marketing. The idea is to have people evaluate some aspects
of service quality for chains on different economy sectors. Then, conduct a
G-study
Of *Iuri
Gavronski
*Sent:* Thursday, August 17, 2006 1:26 PM
*To:* Doran, Harold
*Cc:* r-help@stat.math.ethz.ch
*Subject:* Re: [R] Variance Components in R
I am trying to replicate Finn and Kayandé (1997) study on G-theory
application on Marketing. The idea is to have people evaluate some aspects
for your study?
From: [EMAIL PROTECTED][mailto:[EMAIL PROTECTED] On Behalf
Of IuriGavronski
Sent: Thursday, August 17, 2006 1:26 PM
To:Doran, Harold
Cc: r-help@stat.math.ethz.ch
Subject: Re:[R] Variance Components in R
I
?
From: [EMAIL PROTECTED][mailto:[EMAIL PROTECTED] On Behalf
Of IuriGavronski
Sent: Thursday, August 17, 2006 1:26 PM
To:Doran, Harold
Cc: r-help@stat.math.ethz.ch
Subject: Re:[R] Variance Components in R
I am trying
:[EMAIL PROTECTED] *On Behalf Of *Iuri
Gavronski
*Sent:* Thursday, August 17, 2006 1:26 PM
*To:* Doran, Harold
*Cc:* r-help@stat.math.ethz.ch
*Subject:* Re: [R] Variance Components in R
I am trying to replicate Finn and Kayandé (1997) study on G-theory
application on Marketing. The idea
Thank you for your reply.
VARCOMP is available at SPSS advanced models, I'm not sure for how long it
exists... I only work with SPSS for the last 4 years...
My model only has crossed random effects, what perhaps would drive me to
lmer().
However, as I have unbalanced data (why it is normally
@stat.math.ethz.ch
Subject: Re: [R] Variance Components in R
Thank you for your reply.
VARCOMP is available at SPSS advanced models, I'm not sure
for how long it exists... I only work with SPSS for the last
4 years...
My model only has crossed random effects, what perhaps would
drive me to lmer
. This will give you many
examples.
vignette('MlmSoftRev')
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
Of Iuri Gavronski
Sent: Thursday, August 17, 2006 11:16 AM
To: Doran, Harold
Subject: Re: [R] Variance Components
To: Doran, Harold
Subject: Re: [R] Variance Components in R
9500 records. It didn`t run in SPSS or SAS on Windows machines,
so I am trying to convert the SPSS script to R to run in a RISC station
at the university.
On 8/17/06, Doran, Harold
examples.
vignette('MlmSoftRev')
--
*From:* [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] *On Behalf Of *Iuri
Gavronski
*Sent:* Thursday, August 17, 2006 11:16 AM
*To:* Doran, Harold
*Subject:* Re: [R] Variance Components in R
9500 records. It didn`t run in SPSS
PROTECTED] On Behalf Of Iuri
Gavronski
Sent: Thursday, August 17, 2006 1:26 PM
To: Doran, Harold
Cc: r-help@stat.math.ethz.ch
Subject: Re: [R] Variance Components in R
I am trying to replicate Finn and Kayandé (1997) study on G-theory
I used SPSS over 25 years ago, but I don't recall ever fitting a
variance components model with it. Are all your random effects nested?
If they were, I would recommend you use 'lme' in the 'nlme' package.
However, if you have crossed random effects, I suggest you try 'lmer'
associated
Hi,
I'm trying to fit a model using variance components in R, but if very
new on it, so I'm asking for your help.
I have imported the SPSS database onto R, but I don't know how to
convert the commands... the SPSS commands I'm trying to convert are:
VARCOMP
RATING BY CHAIN SECTOR RESP
In any case, the question was about lm, not lme.
The short answer is that this is easiest from aov, a wrapper for lm, and
for balanced data will be equivalent to as using lme. Steve can find
worked examples for interlaboratory data in MASS (the book, see the FAQ).
On Thu, 14 Jul 2005, Spencer
I often use simple nested random-effect models for interlaboratory data.
The variance components are important things to know.
Is there an R function or package that gets variance components from lm
objects? Or can someone point me to a method of doing so?
Under normal circumstances, 'RSiteSearch(variance components)'
would likely identify lme in package nlme and lmer in package lme4. I
recommend lme, as it comes with a fairly complete set of helper
functions described in Pinheiro and Bates (2000) Mixed-Effect Models in
S and S-Plus
From: Spencer Graves
Under normal circumstances, 'RSiteSearch(variance
components)'
would likely identify lme in package nlme and lmer in
package lme4. I
recommend lme, as it comes with a fairly complete set of helper
functions described in Pinheiro and Bates (2000)
Yes, I'm very thankful for the support of Prof. Jonathan Baron and
all the others who have contributed their time, creative energies and
(for some) money to make R what it is today. It is beyond the budgets
of most people on this planet to purchase licenses for every piece of
Which possibilities are there in R for estimation of Variance components?
Jörg Peter Baresel
Technische Universität München
Lehrstuhl für Pflanzenbau und Pflanzenzüchtung
D-85354 Freising
Lange Point 51
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Baresel [mailto:[EMAIL PROTECTED]
Sent: Wednesday, September 03, 2003 9:12 AM
To: r-help
Subject: [R] variance components
Which possibilities are there in R for estimation of Variance components?
Jörg Peter Baresel
Technische Universität München
Lehrstuhl für Pflanzenbau und Pflanzenzüchtung
D
lme in library(nlme) is vastly superior in many ways to varcomp, but
has the disadvantage of being difficult to use, at least in my
experience. When I need it, I also refer to José C. Pinheiro and
Douglas M. Bates (2000) Mixed-effects models in S and S-PLUS (NY: New
York : Springer). I
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