Heat exchange calculations during physical activity R package heatex version 1.0 The heatex package calculates heat storage in the body and the components of heat exchange (conductive, convective, radiative, and evaporative) between the body and the environment during physical activity based on the principles of partitional calorimetry. The program enables heat exchange calculations for a range of environmental conditions when wearing various clothing ensembles. Software Kerry Atkins <atkins.kerry04@gmail.com> Comprehensive R Archive Network (CRAN) Kerry Atkins GPL-3 2013-02-28 application/tgz https://CRAN.R-project.org/package=heatex doi:10.32614/CRAN.package.heatex