Since Philadelphia is arranged on a grid system, the mostly one-way roads are easy to navigate. Helpful maps are posted along street corners across the city – watch for the "Walk! Philadelphia" signs ...
R scripts to explain the algorithms of simplex projection and S-map. In the scripts, simplex projection (Sugihara & May 1990) and S-map (Sugihara 1994) are implemented without using existing EDM ...
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