Created
February 11, 2018 23:09
-
-
Save walkerke/1750990defd9f8e6c495cf31fd7a8273 to your computer and use it in GitHub Desktop.
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| library(tidycensus) | |
| library(tidyverse) | |
| library(extrafont) | |
| city16 <- get_acs(geography = "place", | |
| variables = "B01003_001", | |
| survey = "acs1") %>% | |
| filter(estimate > 500000) %>% | |
| rename(estimate16 = estimate) | |
| city12 <- get_acs(geography = "place", | |
| variables = "B01003_001", | |
| survey = "acs1", | |
| year = 2012) %>% | |
| rename(estimate12 = estimate) %>% | |
| select(GEOID, estimate12) | |
| cities <- inner_join(city16, city12, by = "GEOID") %>% | |
| mutate(pctchange = round(100 * ((estimate16 - estimate12) / estimate12), 1)) %>% | |
| filter(GEOID != "41980") %>% | |
| mutate(type = case_when( | |
| GEOID == "4835000" ~ "Houston", | |
| pctchange < 0 ~ "decline", | |
| pctchange > 0 ~ "growth" | |
| )) %>% | |
| mutate(NAME = str_replace(NAME, " city.*|-.*|/.*", "")) %>% | |
| arrange(pctchange) | |
| color <- ifelse(cities$NAME == "Houston", "navy", "grey30") | |
| face <- ifelse(cities$NAME == "Houston", "bold", "plain") | |
| ggplot(cities, aes(x = pctchange, y = reorder(NAME, pctchange), | |
| color = type)) + | |
| geom_segment(aes(x = 0, y = reorder(NAME, pctchange), | |
| xend = pctchange, yend = reorder(NAME, pctchange), | |
| color = type)) + | |
| geom_point(size = 3) + | |
| theme_minimal(base_family = "Verdana") + | |
| scale_color_manual(values = c("red", "#90b4d2", "navy"), guide = FALSE) + | |
| scale_x_continuous(labels = function(x) { paste0(x, "%") }, | |
| expand = c(0.02, 0, 0.02, 0)) + | |
| labs(x = "Percent change between 2012 and 2016", | |
| y = "", | |
| title = "Municipal population change, 2012-2016", | |
| subtitle = "Cities with populations above 500,000", | |
| caption = "Data acquired with the R tidycensus package. Chart by @kyle_e_walker.") + | |
| theme(panel.grid.major.x = element_blank(), | |
| panel.grid.minor.x = element_blank(), | |
| panel.grid.minor.y = element_blank(), | |
| plot.title = element_text(face = "bold"), | |
| plot.caption = element_text(size = 7), | |
| axis.text.y = element_text(color = color, face = face)) |
Author
walkerke
commented
Feb 11, 2018
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment