In fact they would be rather factors. PCA works based on distances. So these variables are not appropriate and you should drop them. Perform a principal component analysis and assign its result to an ...
State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China School of Environment, Hangzhou ...
This CRAN Task View contains a list of packages useful for scientific work in Archaeology, grouped by topic. Note that this is not an official CRAN Task View, just one I have prepared for my own ...
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