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contatains
2011 Oct 28
4
Contrasts with an interaction. How does one specify the dummy variables for the interaction
Forgive my resending this post. To data I have received only one response (thank you Bert Gunter), and I still do not have an answer to my question.
Respectfully,
John
Windows XP
R 2.12.1
contrast package.
I am trying to understand how to create contrasts for a model that contatains an interaction. I can get contrasts to work for a model without interaction, but not after adding the interaction. Please see code below. The last two contrast statements show the problem. I would appreciate someone letting me know what is wrong with the syntax of my contrast statements.
Thank you...
2011 Oct 28
2
Thank you
Dear r-community,
Today I have completed my PhD. I would like to take this opportunity to thank the r-community for helping me with the r-coding. I use r to do data manipulation during my PhD and I benefit a lot through the discussion in the r-forum.
I will continue using R and help the others too.
Thank you so much.
Regards,
Roslina
UniSA.
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