Dimensionality Reduction in R

Most problems of interest to organizations are multivariate. They involve multiple issues that must be looked at simultaneously. For example, when evaluating sites for a new store, we need to consider factors like cost of land, proximity to transport and local competition. The more issues (i.e. dimensions) we have to consider, the thorny the problems […]
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How to Display Data on a World Map in R

One of the strengths of R is its vast ecosystem of libraries. This includes numerous sophisticated visualization libraries—some of which, such as the excellent ggplot, are capable of producing publication quality charts. I’m not a huge fan of charts (e.g. scatterplots, barcharts) as communication devices. I believe that conclusions can usually be presented more succinctly. […]
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