Baixaki R3x
$6.00. R3X is an R tool for resistance (HR) calculation of steel building structures based on standardized testing methods, with two version available: v1.0 (using results from the UNECE-ISO standards) and v2.0 (including also ISU testing methods). It can be used as an R interface to the qcrr-roport package (only available in R). It is currently in it's final version, v2.0.0.0, with already a lot of contributions.
R3X is available on CRAN (as a compressed RAR file and through the BioConductor package qcrr). It can be downloaded directly from GitHub ( If you are using Windows, you can also install R3X in an RStudio terminal (Install R3X for Windows via RStudio).
R3X can be installed and used from Linux, Windows, Mac OS X and other UNIX systems (MacPorts, Homebrew, etc.). However, the source code is available only for Windows. 
. Homepage: 
. Linux:  
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. Windows: 
. Available on Windows from CodePlex:  (
. Released under MIT License:  (
R3X is free software, released under the terms of the GNU General Public License (GPL) version 2.0 or later.
. R3X is open source, under the terms of GNU General Public License (GPL) version 2.0 or later: 
(
R3X can be used as an interface to the qcrr-roport package. This is the package for the calculation of the effective steel reinforcement of steel buildings based on UNECE-ISO and/or ISU (ISBN) test methods. It is available in R (R is free software for statistical computing and graphics). 
. Install qcrr-roport with default parameters:  
R> install.packages
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