Package: cmpsR 0.1.2

cmpsR: R Implementation of Congruent Matching Profile Segments Method

This is an open-source implementation of the Congruent Matching Profile Segments (CMPS) method (Chen et al. 2019)<doi:10.1016/j.forsciint.2019.109964>. In general, it can be used for objective comparison of striated tool marks, and in our examples, we specifically use it for bullet signatures comparisons. The CMPS score is expected to be large if two signatures are similar. So it can also be considered as a feature that measures the similarity of two bullet signatures.

Authors:Wangqian Ju [aut, cre], Heike Hofmann [ctb]

cmpsR_0.1.2.tar.gz
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manual.pdf |manual.html✨
DESCRIPTION
card.svg |card.png
cmpsR/json (API)

# Install 'cmpsR' in R:

install.packages('cmpsR', repos = c('https://willju-wangqian.r-universe.dev', 'https://cloud.r-project.org'))

Bug tracker:https://github.com/willju-wangqian/cmpsr/issues

Datasets:

bullets - Information of two example bullets

On CRAN:

3.93 score 1 stars 17 scripts 297 downloads 15 exports 26 dependencies

Last updated from:87baa1bf11. Checks:13 OK. Indexed: yes.

Target	Result	Time
linux-devel-arm64	OK	198
linux-devel-x86_64	OK	204
source / vignettes	OK	277
linux-release-arm64	OK	162
linux-release-x86_64	OK	164
macos-release-arm64	OK	200
macos-release-x86_64	OK	294
macos-oldrel-arm64	OK	179
macos-oldrel-x86_64	OK	448
windows-devel	OK	115
windows-release	OK	103
windows-oldrel	OK	106
wasm-release	OK	133

Exports:cmps_na_trim cmps_segment_plot cmps_signature_plot compute_diff_phase compute_score_metrics compute_ss_ratio extract_feature_cmps get_all_phases get_ccf4 get_ccp get_ccr_peaks get_CMPS get_seg_scale get_segs metric_plot_helper

Dependencies:assertthat cli cpp11 dplyr farver generics ggplot2 glue gtable isoband labeling lifecycle magrittr pillar pkgconfig R6 RColorBrewer rlang S7 scales tibble tidyselect utf8 vctrs viridisLite withr

cmpsR-vignette

Installation | Example and Summary of the Algorithm | Main Idea | Full Comparison Between Two Bullets | Reference

Rendered fromcmpsR-vignette.Rmdusingknitr::rmarkdown

Last update: 2022-07-18
Started: 2021-10-18

Citation

Development and contributors

Readme and manuals

Help Manual

Help page	Topics
Information of two example bullets	bullets
Remove the leading and trailing missing values in a numeric vector	cmps_na_trim
Plot the selected basis segment and its cross-correlation curve at all scales based on the results of CMPS algorithm	cmps_segment_plot
Plot reference signature and comparison signature based on the results of CMPS algorithm	cmps_signature_plot
Wrapper function for compute_cross_corr	compute_cross_corr
Compute a Statistic for the Foreground Phase and the Background Phases	compute_diff_phase
Compute Different Metrics Based on Scores	compute_score_metrics
#' Compute the Sum of Squares Ratio	compute_ss_ratio
Computes the CMPS score of a comparison between two bullet profiles/signatures	extract_feature_cmps
Obtain a list of all phases of a bullet-by-bullet comparison	get_all_phases
Function to calculate the cross-correlation between two sequences	get_ccf4
Identify at most one consistent correlation peak (ccp)	get_ccp
Identify peaks of a cross correlation curve	get_ccr_peaks
Compute the CMPS score	get_CMPS
Change the sacle of a segment	get_seg_scale
Divide a bullet signature/profile into basis segments of desired length	get_segs
find local maximums	local_max_cmps
Helper Function for Plotting the Distribution of a Metric	metric_plot_helper
Wrapper function for na_trim	na_trim_cmps