[R] extracting pvalue from ANOVA with repeated measures

delphine.fontaine at genexion.com delphine.fontaine at genexion.com
Wed Jan 2 20:49:47 CET 2008


I made an ANOVA with repeated mesures
(aov(Mesure~Distance*Genre*Correct+Error(Sujet/(Distance*Genre*Correct)),
data)) and I would like to extract the pvalues.

The output is:
-----------------------------------------------------------
Error: Sujet
          Df Sum Sq Mean Sq F value Pr(>F)
Residuals 21 97.082   4.623

Error: Sujet:Distance
          Df Sum Sq Mean Sq F value Pr(>F)
Distance   1  0.043   0.043  0.0162    0.9
Residuals 21 56.283   2.680

Error: Sujet:Genre
          Df Sum Sq Mean Sq F value Pr(>F)
Genre      1  0.026   0.026  0.0055 0.9416
Residuals 21 98.849   4.707

Error: Sujet:Correct
          Df Sum Sq Mean Sq F value Pr(>F)
Correct    1  3.208   3.208  0.9564 0.3392
Residuals 21 70.435   3.354

Error: Sujet:Distance:Genre
               Df Sum Sq Mean Sq F value Pr(>F)
Distance:Genre  1  0.322   0.322  0.0975 0.7579
Residuals      21 69.388   3.304

Error: Sujet:Distance:Correct
                 Df Sum Sq Mean Sq F value Pr(>F)
Distance:Correct  1  0.108   0.108  0.0271 0.8709
Residuals        21 83.536   3.978

Error: Sujet:Genre:Correct
              Df  Sum Sq Mean Sq F value Pr(>F)
Genre:Correct  1   0.510   0.510   0.103 0.7515
Residuals     21 103.972   4.951

Error: Sujet:Distance:Genre:Correct
                       Df Sum Sq Mean Sq F value Pr(>F)
Distance:Genre:Correct  1  7.677   7.677  2.1301 0.1592
Residuals              21 75.686   3.604

Error: Within
           Df Sum Sq Mean Sq F value Pr(>F)
Residuals 176 671.91    3.82
-----------------------------------------------------------

Each table is a list of length 1. So I can't extract the Pvalue because I
can't split each element. Any idea ?

thanks !

Delphine




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