treeperm-package: Exact and Asymptotic K Sample Permutation Test
In treeperm: Exact and Asymptotic K Sample Permutation Test

Description Details Author(s) See Also Examples

A package that performs exact K sample permutation test of data locations

Package:	treeperm
Type:	Package
Version:	1.6
Date:	2015-04-22
License:	GPL-2

An implementation of permutation tests in R, supporting both exact and asymptotic K sample test of data locations. The p value of exact tests is found using tree algorithms. Tree algorithms treat permutations of input data as tree nodes and perform constraint depth-first searches for permutations that fall into the critical region of a test systematically. Pruning of tree search and optimisations at C level enable exact tests for certain large data sets.

Qiao Kang

Maintainer: Qiao <qk@st-andrews.ac.uk>

Permutation KPermutation plot.treeperm treeperm

value<-c(0,190,0,0,10,0,0,0,0,0,0,110,0,0,52,0,8,0,50,0,0,137,965,110)
label<-as.factor(c(1,1,1,2,2,2,1,1,1,2,2,2,1,1,1,2,2,2,1,1,1,2,2,2))
data<-data.frame(label,value)
exact<-treeperm(value~label,frame=data,type="exact")
exact
summary(exact)
approximate<-treeperm(value~label,frame=data,type="approximate",size=999)
approximate
summary(approximate)
plot(exact,size=999)