chumbley_non_random_adj: Adjusted Chumbley Non-Random

In heike/toolmaRk: Tests for Same-Source of Toolmarks

Description

This function computes the Chumbley U-Statistic on systemically chosen pairs of windows rather than the original method which selects randomly chosen pairs of windows

Usage

chumbley_non_random_adj(data1, data2, window_opt = 500, window_val = 50,
  coarse = 0.25)

Arguments

data1	The first tool mark as a 1-column matrix
data2	The second tool mark as a 1-column matrix
window_opt	size of the window to be used in the optimization step
window_val	Size of the window to be used in the validation step
coarse	smoothing parameter for the normalization smooth

Value

list with

• same_shift_n Number of same shift offsets used

• diff_shift_n Number of different shift offsets used

• U observed U statistic

• p_value Corresponding p-value

• same_shift correlation values corresponding to the same shift offset

• diff_shift correlation values corresponding to the different shift offset

Examples

chumbley_non_random_adj(ameslab$profile[[1]], ameslab$profile[[2]])

heike/toolmaRk documentation built on May 27, 2019, 7:40 a.m.