Message-ID: <814106.59339.qm@web28408.mail.ukl.yahoo.com>
Date: 2009-04-14T15:02:15Z
From: Amit Patel
Subject: Help with ANOVA p-values
Hi
I have done ANOVA on a dataset (See Below) but am having problems retreiving the p-value. I am assuming that Pr(>F) is the p-value but cannot get this value or in fact any other value (e.g. DF) from the summary.Any suggestions??
I have tried
sum<-summary(zzz.aov)
> sum$Pr(>F)
Error: unexpected '>' in "sum$Pr(>"
> sum$"Pr(>F)"
NULL
> sum$Df
NULL
> zzz.aov <- aov(Intensity ~ Group + Error(Sample), data = zzzanova)
> summary(zzz.aov)
Error: Sample
Df Sum Sq Mean Sq
Group 1 6.0313e+10 6.0313e+10
Error: Within
Df Sum Sq Mean Sq F value Pr(>F)
Group 3 2.6012e+10 8.6707e+09 0.2934 0.8299
Residuals 34 1.0049e+12 2.9556e+10