[R] ANOVA/statistics question

drmh douglasrmholmes at googlemail.com
Sat Apr 25 14:27:06 CEST 2009


(Have searched for this already)

Hi,

How do you find the strength of correlation between two variables using an
ANOVA table?  "Pr(>F)" gives the statistical significance of the
association, but not the strength of the correlation.

See data (from R) below

Readable:
                      "Df"     "Sum Sq"        "Mean Sq"           "F value"        
"Pr(>F)"
"pre"              1           0.00593          0.00593936         
0.7450563       0.401636958677004
"coh"             1           0.04311          0.04311302          5.4082639      
0.0344751749542619
"Residuals"    15         0.11957          0.00797169          NA                
NA

Original:
"Df" "Sum Sq" "Mean Sq" "F value" "Pr(>F)"
"pre" 1 0.0059393604629317 0.0059393604629317 0.745056336657567
0.401636958677004
"coh" 1 0.0431130207164516 0.0431130207164516 5.40826398359156
0.0344751749542619
"Residuals" 15 0.119575396598395 0.00797169310655964 NA NA

Any help would be greatly appreciated,
Douglas Holmes
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