R: Statistics for 2 by K table

s2k {gap} | R Documentation

## 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.

### Note

The lengths of y1 and y2 should be the same.

### Author(s)

Chihiro Hirotsu, Jing Hua Zhao

### 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

### 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)

[Package gap version 1.2.3-6 Index]