
R Under development (unstable) (2013-09-01 r63796) -- "Unsuffered Consequences"
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> 
> library("maxstat")
> library("exactRankTests")
Loading required package: survival
Loading required package: splines
 Package 'exactRankTests' is no longer under development.
 Please consider using package 'coin' instead.

> set.seed(290875)
> 
> # by Achim Zeileis, 13.09.2002
> y <- c(0.9, 1, 0.8, 0.8, 0.85, 0.3, 0.2, 0.2, 0.1, 0.2, 0.3)
> index <- 1:length(y)
> mydata <- data.frame(cbind(y, index))
> maxstat.test(y ~ index, data=mydata, smethod = "Wilcoxon", pmethod = "HL")

	Maximally selected Wilcoxon statistics using HL

data:  y by index
M = 2.7767, p-value < 2.2e-16
sample estimates:
estimated cutpoint 
                 5 

> # this one failed: QUANT not known
> maxstat.test(y ~ index, data=mydata)

	Maximally selected Wilcoxon statistics using none

data:  y by index
M = 2.7767, p-value = NA
sample estimates:
estimated cutpoint 
                 5 

> 
> # spotted and fixed 16.09.2002
> y <- rnorm(20)
> x <- factor(c(rep(0,10), rep(1,10)))
> mydata <- data.frame(cbind(y,x))
> a <- maxstat.test(y ~ x, data=mydata, smethod="Wilcoxon", pmethod="HL")
> b <- wilcox.exact(y ~ x, data=mydata)                                  
> stopifnot(all.equal(a$p.value, b$p.value))
> 
> # check new conditional Monte-Carlo p-values
> 
> set.seed(290875)
> a <- maxstat.test(y ~ x, data=mydata, smethod="Wilcoxon", pmethod="condMC", 
+              B = 9999)$p.value
> a
[1] 0.9150915
> set.seed(290875)
> b <- maxstat.test(y ~ x, data=mydata, smethod="Wilcoxon", pmethod="condMC", 
+              B = 9999, alpha = 0.9)$p.value
> b
[1] 0.9150915
> stopifnot(all.equal(a, b))
> 
> 
> proc.time()
   user  system elapsed 
  0.192   0.036   0.223 
