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geosphere is anR package for spherical trigonmetry. That is compute distance, direction, area, and related quantities with longitude / latitude data. There are tutorials atrspatial.org.

geosphere is available from CRAN, so you can useinstall.packages("geosphere") to get the currentreleased version.

The easiest way to use thedevelopment version on Windows or MacOS, is to install it from theR-universe, like this:

install.packages('geosphere', repos='https://rspatial.r-universe.dev')

In R, you can install the package like this.

remotes::install_github("rspatial/geosphere")

On Windows, you need to first installRtools to get a C++ compiler that R can use.