[R] Physically extracting P-value from TukeyHSD test output
Pascal Oettli
kridox at ymail.com
Thu Dec 13 08:56:36 CET 2012
Hello,
> require(graphics)
> summary(fm1 <- aov(breaks ~ wool + tension, data = warpbreaks))
> THSD <- TukeyHSD(fm1, "tension", ordered = TRUE)
> p.adj <- THSD$tension[,4]
HTH
Pascal
Le 13/12/2012 16:08, raz a écrit :
> Hey,
> I have this TukeyHSD output from which I would like to extract only the
> P-values (p adj, last number).
> The problem is that the test output is a character list.
> How can I "break" this sentence to separate the Pv?
>
> Tukey multiple comparisons of means
> 95% family-wise confidence level
>
> Fit: aov(formula = Fe1$Fe ~ Fe1$genotype)
>
> $`Fe1$genotype`
> diff lwr upr p adj
> A1/D1-A1 -1.48 -12.660238 9.700238 0.9808395
> D1-A1 2.72 -8.460238 13.900238 0.8970997
> WT-A1 16.23 5.049762 27.410238 0.0037499
> D1-A1/D1 4.20 -6.980238 15.380238 0.7092182
> WT-A1/D1 17.71 6.529762 28.890238 0.0017396
> WT-D1 13.51 2.329762 24.690238 0.0154169
>
> Thanks
>
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