Git hook scripts are useful for identifying simple issues before submission to code review. 'captain' (hook) is an R package to manage and run git pre-commit hooks.

Get text from images of text using Captricity Optical Character
    Recognition (OCR) API. Captricity allows you to get text from handwritten
    forms --- think surveys --- and other structured paper documents. And it can
    output data in form a delimited file keeping field information intact. For more
    information, read <https://shreddr.captricity.com/developer/overview/>.

Calibration of penalized criteria for model selection. The calibration methods available in this package are based on the slope heuristics.

Fast and user-friendly estimation of generalized linear models with
    multiple fixed effects and cluster the standard errors. The method to obtain
    the estimated fixed-effects coefficients is based on Stammann (2018) 
    <doi:10.48550/arXiv.1707.01815>, Gaure (2013)
    <doi:10.1016/j.csda.2013.03.024>, Berge (2018)
    <https://ideas.repec.org/p/luc/wpaper/18-13.html>, and Correia et al. (2020)
    <doi: 10.1177/1536867X20909691>.

Functions to Accompany J. Fox and S. Weisberg, 
  An R Companion to Applied Regression, Third Edition, Sage, 2019.

Computer algebra via the 'SymPy' library (<https://www.sympy.org/>). 
  This makes it possible to solve equations symbolically, 
  find symbolic integrals, symbolic sums and other important quantities.

Tools for implementing covariate-adjusted response-adaptive procedures for binary, continuous and survival responses. Users can flexibly choose between two functions based on their specific needs for each procedure: use real patient data from clinical trials to compute allocation probabilities directly, or use built-in simulation functions to generate synthetic patient data. Detailed methodologies and algorithms used in this package are described in the following references:
    Zhang, L. X., Hu, F., Cheung, S. H., & Chan, W. S. (2007)<doi:10.1214/009053606000001424>
    Zhang, L. X. & Hu, F. (2009) <doi:10.1007/s11766-009-0001-6>
    Hu, J., Zhu, H., & Hu, F. (2015) <doi:10.1080/01621459.2014.903846>
    Zhao, W., Ma, W., Wang, F., & Hu, F. (2022) <doi:10.1002/pst.2160>
    Mukherjee, A., Jana, S., & Coad, S. (2024) <doi:10.1177/09622802241287704>.