Tandem Repeat Analysis by Capillary Electrophoresis R package trace version 1.0.0 A pipeline for short tandem repeat instability analysis from fragment analysis data. Inputs of fsa files or peak tables, and a user supplied metadata data-frame. The package identifies ladders, calls peaks, identifies the modal peaks, calls repeats, then calculates repeat instability metrics (e.g. expansion index from Lee et al. (2010) <doi:10.1186/1752-0509-4-29>). Software Depends: R (>= 3.5) Imports: graphics, grDevices, lme4, methods, mgcv, plotly, pracma, seqinr, shiny, stats, utils, yaml Suggests: knitr, dplyr, ggplot2, shinytest2, testthat (>= 3.0.0) Zachariah McLean <zachariah.louis.mclean@gmail.com> Comprehensive R Archive Network (CRAN) Zachariah McLean [aut, cre, cph] (ORCID: <https://orcid.org/0000-0002-0968-0538>), Kevin Correia [aut], Andrew Jiang [ctb] MIT + file LICENSE (https://CRAN.R-project.org/package=trace/LICENSE) 2025-12-22 application/tgz https://CRAN.R-project.org/package=trace doi:10.32614/CRAN.package.trace