mSummarizer: summarize attributes over a containing geometry

In townleym/mSpatial: Some Convenience Functions building on the rGeos library

Description

Convenience wrapper around gPolyByIntersect that applies a function over specified attributes in the reference set. It allows for buffering the input container.

Usage

mSummarizer(container, reference, buffer = 1, colnamevec, centroid = F,
  threshold = 0.99, FUN)

Arguments

container	The thing you want to summarize within
reference	The thing whose attributes you want to summarize
buffer	How much you want to blow up the summarizing container (in meters)
colnamevec	A vector of column names corresponding to those in the container whose values will be summarized
centroid	Whether to use containing centroids for choosing reference geometries within the container
threshold	the overlap percentage to use when centroid = F

Details

Note: careful, it's pretty fragile

Examples

mSummarizer(cambridge_town, boston_blocks, buffer = 0, c("total_pop", "total_hh"), centroid = T, FUN = "sum")

townleym/mSpatial documentation built on May 31, 2019, 6:46 p.m.