chumbley_non_random {toolmaRk}

Chumbley Non-Random

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(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