Thank you for your help professor Ripley!
I suppose my problem is more theoretical related than syntax. I will review
your suggested literature.
and yes, I did error on the data source, thank you for catching my mistake!!
Best,
Dave
On Sat, Jan 9, 2010 at 3:56 AM, Prof Brian Ripley wrote:
> W
What are you trying to do? Your example is not what is commonly
called ANOVA (some call it ANCOVA) and more often lm() is used.
I suspect that you intended 'population' to be a factor, and it is
not. So population:condition is not an interaction but different
slopes for population by levels
Oops small error
Use this to import the data
#import the data
allData.import=read.table("http://files.davidderiso.com/r/allData.data
",header=T)
studentData.import=read.table("
http://files.davidderiso.com/r/studentData.data",header=T)
everything else is good
On Sat, Jan 9, 2010 at 3:33 AM, Dav
Hello,
I have a simple question about using the aov function syntax (ie. * + or :)
for the interaction of 2 factors. I have read the help files, and researched
other sites, and have included my source files. My goal is to measure the
signifigance of the interaction between population and condition
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