The tcplfit2 R package performs basic concentration-response curve fitting. The original tcplFit() function in the tcpl R package performed basic concentration-response curvefitting to 3 models. With tcplfit2, the core tcpl concentration-response functionality has been expanded to process diverse high-throughput screen (HTS) data generated at the US Environmental Protection Agency, including targeted ToxCast, high-throughput transcriptomics (HTTr) and high-throughput phenotypic profiling (HTPP). tcplfit2 can be used independently to support analysis for diverse chemical screening efforts.
| Version: | 
0.1.9 | 
| Depends: | 
R (≥ 3.5.0) | 
| Imports: | 
stats, methods, numDeriv, RColorBrewer, stringr, reshape2, ggplot2 (≥ 3.5.0) | 
| Suggests: | 
knitr, rmarkdown, stringi, DT, data.table, tcpl, prettydoc, testthat (≥ 3.0.0), here, htmlTable, tidyr, dplyr, gridExtra, rmdformats | 
| Published: | 
2025-07-23 | 
| DOI: | 
10.32614/CRAN.package.tcplfit2 | 
| Author: | 
Thomas Sheffield [aut],
  Jason Brown   [ctb],
  Sarah E. Davidson-Fritz
      [ctb],
  Madison Feshuk  
    [ctb, cre],
  Lindsay Knupp [ctb],
  Zhihui Zhao [ctb],
  Richard S Judson  
    [ctb],
  Katie Paul Friedman
      [ctb] | 
| Maintainer: | 
Madison Feshuk  <feshuk.madison at epa.gov> | 
| BugReports: | 
https://github.com/USEPA/CompTox-ToxCast-tcplFit2/issues | 
| License: | 
MIT + file LICENSE | 
| URL: | 
https://github.com/USEPA/CompTox-ToxCast-tcplFit2 | 
| NeedsCompilation: | 
no | 
| Materials: | 
README, NEWS  | 
| CRAN checks: | 
tcplfit2 results |