gap: s2k – R documentation

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s2k

Statistics for 2 by K table

Description

This function calculates one-to-others and maximum accumulated chi-squared statistics for a 2 by K contingency table.

Usage

s2k(y1,y2)

Arguments

`y1`	a vector containing the first row of a 2 by K contingency table
`y2`	a vector containing the second row of a 2 by K contingency table

Value

The returned value is a list containing:

`x2a`	the one-to-other chisquare
`x2b`	the maximum accumulated chisquare
`col1`	the column index for x2a
`col2`	the column index for x2b
`p`	the corresponding p value

References

Hirotsu C, Aoki S, Inada T, Kitao Y (2001) An exact test for the association between the disease and alleles at highly polymorphic loci with particular interest in the haplotype analysis. Biometrics 57:769-778

Note

The lengths of y1 and y2 should be the same

Author(s)

Chihiro Hirotsu, Jing Hua Zhao

Examples

## Not run: 
# an example from Mike Neale
# termed 'ugly' contingency table by Patrick Sullivan
y1 <- c(2,15,16,35,132,30,25,7,12,24,10,10,0)
y2 <- c(0, 6,31,49,120,27,15,8,14,25, 3, 9,3)

result <- s2k(y1,y2)

## End(Not run)

gap

Genetic Analysis Package

v1.2.3-1

GPL (>= 2)

Authors

Jing Hua Zhao and colleagues with inputs from Kurt Hornik and Brian Ripley

Initial release

2021-4-21

s2k