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zross/sf_dplyr.R

Created April 20, 2017 20:50
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quick example of sf with dplyr producing spatial output
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sf_dplyr.R
library(dplyr)
nc = st_read(system.file("shape/nc.shp", package="sf"))
nc$blah <- sample(c(1,2,3), size = nrow(nc), replace = TRUE)
nc %>% group_by(blah) %>% summarize(avg_bir74 = mean(BIR74))
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