[R] Two Way ANOVA

From: David Mackovjak <bejitto101_at_yahoo.com>
Date: Wed, 19 Mar 2008 15:02:12 -0700 (PDT)


First time using, the mailing list and I'm somewhat new to R, so excuse me if I do anything wrong.

I was wondering how I would set up a two way ANOVA for the following data:

      
      Nitrogen
  (0)
       
      Nitrogen
  (20)
       
       
         
       

(cell
means)
(cell
means) [Sulfur means] Sulfur (0) 4.48 5.76 4.52
(4.54)
5.64
(5.73)
[5.14] 4.63 5.78 Sulfur (3) 4.70 7.01 4.65
(4.64)
7.11
(7.05)
[5.84] 4.57 7.02 Sulfur (6) 5.21 5.88 5.23
(5.27)
5.82
(5.81)
[5.54] 5.38 5.73 Sulfur (9) 5.88 6.26 5.98
(5.81)
6.26
(6.30)
[6.11] 5.91 6.37 [Nitrogen means] [5.10] [6.22] Source ofVariation SSSulfur 3.15 Nitrogen 7.59 Sulfur x Nitrogen 3.84 Error 0.08Total 14.66

>From googling I know I want to get it to the form:

> fit <- aov(y ~ A*B, data=mydataframe)

But what would I set for A, B and y?



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