[R] Two Factorial Experiment with a Single Control Group

Darcy Trimpe darcy.m.trimpe at wmich.edu
Mon Apr 20 22:50:19 CEST 2015

The statistical analysis I want to conduct is a 2x2 factorial analysis with a single control group. There are 3 animals per group.The low n is accepted in my area of research. My factors are Treatment (No Treatment and Treatment) and Duration (Acute and 3 weeks). The No Treatment level represents an internal control. There is a treatment and no treatment value from each animal. My external control group does not fit into the factor treatment/no treatment but is actually no treatment/no treatment. Thus, the need for the single external control group in the analysis. I have found the manual way of doing this in a textbook and I am told it is widely used so I was hoping to find a way to do it in R. Please let me know if you have any further questions. 

Thanks in advance for your assistance. 


----- Original Message -----

From: "c06n [via R]" <ml-node+s789695n4706176h62 at n4.nabble.com> 
To: "Darcy Trimpe" <darcy.m.trimpe at wmich.edu> 
Sent: Monday, April 20, 2015 3:09:41 PM 
Subject: Re: Two Factorial Experiment with a Single Control Group 


you will have to provide more information. 

* What is the statistical analysis you want to conduct? 
* What exactly are your factors? What are the factors composed of? 
* What do you mean by "single" control group? 

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