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anova help
5 messages · Joe King, Michael Lawrence, Tal Galili +1 more
Provide some example data & code and someone may be able to help.
On Sat, Feb 14, 2009 at 2:46 PM, Joe King <jp at joepking.com> wrote:
Hi all, I am trying to run a two factor anova, but one of the factors is a
random factor, now I am also running in SPSS and it seems its dividing by
the wrong term to get the appropriate F term. here is my data. In SPSS the F
scores about double the ones in R, how can I specify one of my factors as a
random factor or change it to where it does the right model fitting? I am
using the lm command instead of glm. I am new to R so this might seem basic.
Joe King, M.A.
<mailto:jp at joepking.com> jp at joepking.com
"Never give in, never give in, never; never; never; never - in nothing,
great or small, large or petty - never give in except to convictions of
honor and good sense" - Winston Churchill
"You have enemies? Good. That means you've stood up for something, sometime
in your life." - Winston Churchill
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______________________________________________ R-help at r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Mike Lawrence Graduate Student Department of Psychology Dalhousie University www.thatmike.com Looking to arrange a meeting? Check my public calendar: http://www.thatmike.com/mikes-public-calendar ~ Certainty is folly... I think. ~
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Ok well heres my data, with the second variable (B variable) being the random variable and the other fixed. Although the F values are about half of what SPSS puts out. My code is anova(lm(dependentrandom~typemusic+typemusic*musicselection)) This is just dummy data for a class but I am trying to use the data I am running in SPSS to learn R. I am also in an R class but we are not going to learn ANOVA. Joe King, M.A. <mailto:jp at joepking.com> jp at joepking.com "Never give in, never give in, never; never; never; never - in nothing, great or small, large or petty - never give in except to convictions of honor and good sense" - Winston Churchill "You have enemies? Good. That means you've stood up for something, sometime in your life." - Winston Churchill From: Tal Galili [mailto:tal.galili at gmail.com] Sent: Sunday, February 15, 2009 10:25 AM To: Joe King Cc: r-help at r-project.org Subject: Re: [R] anova help Hi Joe, you might want to have a look at the nlme package with the lme command. Another option is the more advanced lmer package. Lastly, you could have a look at the ?aov command, and notice the option of using the +Error() term (but that would only work for balanced design cases, so I've heard, so be aware) Tal
On Sat, Feb 14, 2009 at 8:46 PM, Joe King <jp at joepking.com> wrote:
Hi all, I am trying to run a two factor anova, but one of the factors is a random factor, now I am also running in SPSS and it seems its dividing by the wrong term to get the appropriate F term. here is my data. In SPSS the F scores about double the ones in R, how can I specify one of my factors as a random factor or change it to where it does the right model fitting? I am using the lm command instead of glm. I am new to R so this might seem basic. Joe King, M.A. <mailto:jp at joepking.com> jp at joepking.com "Never give in, never give in, never; never; never; never - in nothing, great or small, large or petty - never give in except to convictions of honor and good sense" - Winston Churchill "You have enemies? Good. That means you've stood up for something, sometime in your life." - Winston Churchill ______________________________________________ R-help at r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
---------------------------------------------- My contact information: Tal Galili Phone number: 972-50-3373767 FaceBook: Tal Galili My Blogs: www.talgalili.com www.biostatistics.co.il
You probably did not forget to attach the data the first time, either. You, instead, probably did not remember to read the posting guide thoroughly regarding what constitutes an acceptable attachment type. Suggest that you change your mail client settings to transmit plain text and "follow the directions": http://www.R-project.org/posting-guide.html
David Winsemius On Feb 15, 2009, at 2:21 PM, Joe King wrote: > Ok well heres my data, with the second variable (B variable) being the > random variable and the other fixed. Although the F values are about > half of > what SPSS puts out. > > > > My code is anova(lm(dependentrandom~typemusic > +typemusic*musicselection)) > > > > This is just dummy data for a class but I am trying to use the data > I am > running in SPSS to learn R. I am also in an R class but we are not > going to > learn ANOVA. > > > > Joe King, M.A. > <mailto:jp at joepking.com> jp at joepking.com > > "Never give in, never give in, never; never; never; never - in > nothing, > great or small, large or petty - never give in except to convictions > of > honor and good sense" - Winston Churchill > > > > "You have enemies? Good. That means you've stood up for something, > sometime > in your life." - Winston Churchill > > > > From: Tal Galili [mailto:tal.galili at gmail.com] > Sent: Sunday, February 15, 2009 10:25 AM > To: Joe King > Cc: r-help at r-project.org > Subject: Re: [R] anova help > > > > Hi Joe, > > you might want to have a look at the nlme package with the lme > command. > > Another option is the more advanced lmer package. > > > > Lastly, you could have a look at the ?aov command, and notice the > option of > using the +Error() term (but that would only work for balanced > design cases, > so I've heard, so be aware) > > > > Tal > > > > > > On Sat, Feb 14, 2009 at 8:46 PM, Joe King <jp at joepking.com> wrote: > > Hi all, I am trying to run a two factor anova, but one of the > factors is a > random factor, now I am also running in SPSS and it seems its > dividing by > the wrong term to get the appropriate F term. here is my data. In > SPSS the F > scores about double the ones in R, how can I specify one of my > factors as a > random factor or change it to where it does the right model fitting? > I am > using the lm command instead of glm. I am new to R so this might > seem basic. > > > > Joe King, M.A. > <mailto:jp at joepking.com> jp at joepking.com > > "Never give in, never give in, never; never; never; never - in > nothing, > great or small, large or petty - never give in except to convictions > of > honor and good sense" - Winston Churchill > > > > "You have enemies? Good. That means you've stood up for something, > sometime > in your life." - Winston Churchill > > > > > [[alternative HTML version deleted]] > > ______________________________________________ > R-help at r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. > > > > > -- > ---------------------------------------------- > > > My contact information: > Tal Galili > Phone number: 972-50-3373767 > FaceBook: Tal Galili > My Blogs: > www.talgalili.com > www.biostatistics.co.il > > > > ______________________________________________ > R-help at r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code.