checkRandomness {beadarray}R Documentation

Test for random distribution of co-ordinates

Description

Function tests to see if a set of co-ordinates are randomly positioned around an array. This can be used to test the distribution of beads of the same type on the same array or outliers for an array.

Usage

checkRandomness(BLData, array, coords)

Arguments

BLData BeadLevelList containing bead-level data
array numeric value specifying the array we want to check the co-ordinates on
coords n by 2 vector where first column is list of x co-ordinates and second column is list of y co-ordinates

Details

The array is split into 8 sections and a chi-squared goodness of fit test is used to assess if the co-ordinates are equally spread among the 8 sections. The chi-squared statistic is defined such that a higher value indicates a less random distribution.

Value

Numeric value giving the result of the chi-squared test.

Author(s)

Mark Dunning

See Also

getProbeCoords

Examples


data(BLData)
co=getProbeCoords(BLData, 2, 1)
checkRandomness(BLData, 1, co)


[Package beadarray version 1.0.0 Index]