On 1/12/2009 6:42 AM, robert-mcfad...@o2.pl wrote:
> Hello,
> Would you tell my how to extract a result from a test - it's justified
> because I need to run this test many times. Here is an example from authors'
> test:
>
>> library("coin")
>> lungtumor <- data.frame(dose = rep(c(0, 1, 2), c(40, 50, 48)), tumor =
>> c(rep(c(0, 1), c(38, 2)), rep(c(0, 1), c(43, 7)), rep(c(0, 1), c(33, 15))))
>> ca.test<-independence_test(tumor ~ dose, data = lungtumor, teststat = "quad")
>> ca.test
>
> Asymptotic General Independence Test
>
> data: tumor by dose
> chi-squared = 10.6381, df = 1, p-value = 0.001108
>
> How to use ca.test and extract p-value and chi-squared.
> pvalue(ca.test)
[1] 0.001107836
> statistic(ca.test)
[1] 10.63806
See the "Value" subsection on the help page for independence_test().
> Robert
>
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