R help - Feb 2010 - Wilcoxon signed-ranks test using package coin ?

Given the following data, and hypothesized median M.0 I've found a
method to implement the Wilcoxon signed-rank test.

Data: (with one zero difference and tied ranks)

x <- c(136, 103, 91, 122, 96, 145, 140, 138, 126, 120, 99, 125,
91,142, 119, 137)
M.0 <- 119
> library(exactRankTests)
  Package ?exactRankTests? is no longer under development.
  Please consider using package ?coin? instead.
> wilcox.exact(x, mu=M.0)
	Exact Wilcoxon signed rank test

data:  x
V = 65.5, p-value = 0.771
alternative hypothesis: true mu is not equal to 119


I've been unable to implement this test using library(coin) - is this
possible?

Thanks.  --Dale

Dale Steele wrote:
> Given the following data, and hypothesized median M.0 I've found a
> method to implement the Wilcoxon signed-rank test.
> 
> Data: (with one zero difference and tied ranks)
> 
> x <- c(136, 103, 91, 122, 96, 145, 140, 138, 126, 120, 99, 125,
> 91,142, 119, 137)
> M.0 <- 119
> 
>> library(exactRankTests)
>   Package ?exactRankTests? is no longer under development.
>   Please consider using package ?coin? instead.
> 
>> wilcox.exact(x, mu=M.0)
> 
> 	Exact Wilcoxon signed rank test
> 
> data:  x
> V = 65.5, p-value = 0.771
> alternative hypothesis: true mu is not equal to 119
> 
> 
> I've been unable to implement this test using library(coin) - is this
possible?
> 
> Thanks.  --Dale
> 
Try this:

  wilcoxsign_test(x ~ rep(M.0, length(x)), dist = 'exact')

-- 
Peter Ehlers
University of Calgary