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Viewing posts from June, 2013

Latitude Public Location Widget

Posted by: admin 4 years, 6 months ago

update nov 2013: uh, well, never mind. latitude is gone for good. the track your friends part of things has moved to g+, but a) no and b) there's no API anyway. i ended up rolling my own replacement using little fluffy location library for Android

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Checking for Spatial Clustering of Points in R

Posted by: admin 4 years, 6 months ago

The R script below tests whether a set of points on a plane is significantly clustered (as opposed to randomly distributed or, conversely, equally spaced), using the Clark-Evans R measure. From the R spatstat package manual "[Clark-Evans R] is the ratio of the observed mean nearest neighbour distance in the pattern to that expected for a Poisson point process of the same intensity. A value R>1 suggests ordering, while R<1 suggests clustering."

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