geo_estimate_up: Estimate Up Geography Levels

In geomander: Geographic Tools for Studying Gerrymandering

Estimate Up Geography Levels

Description

Simple method for aggregating data up to a higher level This is most often useful for getting population data from a block level up to a precinct level. Geographic partner to estimate_up.

Usage

geo_estimate_up(from, to, value, method = "center", epsg = 3857)

Arguments

from	smaller geography level
to	larger geography level
value	numeric vector of length nrow(from). Defaults to 1.
method	string from center, centroid, point, or area for matching levels
epsg	numeric EPSG code to planarize to. Default is 3857.

Value

numeric vector with each value aggregated by group

Examples

library(dplyr)
set.seed(1)
data(checkerboard)
counties <- checkerboard %>%
  group_by(id <= 32) %>%
  summarize(geometry = sf::st_union(geometry)) %>%
  mutate(pop = c(100, 200))
geo_estimate_up(from = checkerboard, to = counties, value = checkerboard$i)

geomander documentation built on April 16, 2023, 5:18 p.m.