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library(tidycensus) | |
library(tigris) | |
library(tidyverse) | |
library(sf) | |
options(tigris_use_cache = TRUE) | |
set.seed(123456) | |
austin_counties <- counties(year = 2021) %>% | |
filter(CBSAFP == "12420") %>% | |
pull(COUNTYFP) | |
austin_inputs <- get_acs( | |
geography = "tract", | |
variables = c(median_income = "B19013_001", | |
median_age = "B01002_001", | |
total_population = "B01003_001"), | |
state = "TX", | |
county = austin_counties, | |
output = "wide", | |
geometry = TRUE, | |
keep_geo_vars = TRUE | |
) %>% | |
mutate(pop_density = total_populationE / (ALAND / 2589988.11 )) %>% | |
na.omit() | |
austin_kmeans <- austin_inputs %>% | |
st_drop_geometry() %>% | |
select(median_incomeE, median_ageE, pop_density) %>% | |
scale() %>% | |
kmeans(centers = 6) | |
austin_clusters <- austin_inputs %>% | |
mutate(cluster = as.character(austin_kmeans$cluster)) | |
library(mapview) | |
mapview(austin_clusters, zcol = "cluster", | |
col.regions = RColorBrewer::brewer.pal(6, "Set1")) | |
ggplot(austin_clusters, aes(fill = cluster)) + | |
geom_sf(size = 0.1) + | |
scale_fill_brewer(palette = "Set1") + | |
theme_void() + | |
labs(fill = "Cluster ") | |
ggplot(austin_clusters, | |
aes(x = median_incomeE, y = pop_density, color = cluster)) + | |
geom_point() + | |
scale_color_brewer(palette = "Set1") + | |
scale_y_log10() + | |
scale_x_continuous(labels = scales::dollar_format()) + | |
theme_minimal(base_size = 16) + | |
labs(color = "Cluster", | |
x = "Median household income", | |
y = "Population density (logged)") | |
library(ggiraph) | |
library(patchwork) | |
austin_map <- ggplot(austin_clusters, aes(fill = cluster, data_id = GEOID)) + | |
geom_sf_interactive(size = 0.1) + | |
scale_fill_brewer(palette = "Set1") + | |
theme_void() + | |
labs(fill = "Cluster ") | |
austin_plot <- ggplot(austin_clusters, | |
aes(x = median_incomeE, y = pop_density, color = cluster, data_id = GEOID)) + | |
geom_point_interactive() + | |
scale_color_brewer(palette = "Set1") + | |
scale_y_log10() + | |
scale_x_continuous(labels = scales::dollar_format()) + | |
theme_minimal(base_size = 12) + | |
labs(color = "Cluster", | |
x = "Median household income", | |
y = "Population density (logged)") | |
girafe(ggobj = austin_map + austin_plot, width_svg = 10, height_svg = 5.5) %>% | |
girafe_options(opts_hover(css = "fill:cyan;"), | |
opts_zoom(min = 1, max = 8)) |
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