This free tool is created by Xiuquan (Xander) Wang to automatically generate a cluster tree based on the tree and map files outputted from rSCA(a statistical tool for multivariate modeling and clustering using stepwise cluster analysis). rSCA can be downloaded at: https://cran.r-project.org/package=rSCA.
Please refer to the following publications to learn how to use rSCA for real-world case studies:
Wang et al. (2015), An open-source software package for multivariate modeling and clustering: applications to air quality management. Environmental Science and Pollution Research, 22(18), 14220-14233. Link to the paper.
Wang et al. (2013), A stepwise cluster analysis approach for downscaled climate projection – A Canadian case study. Environmental Modelling & Software, 49, 141-151. Link to the paper.