Memvisualisasikan margin galat di ACS

Menganalisis Data Sensus AS di R

Kyle Walker

Instructor

Memvisualisasikan ketidakpastian

Pendekatan umum: plot batang galat

Contoh plot batang galat

Plot margin galat di ggplot2

Di ggplot2: geom_errorbar() dan geom_errorbarh()

library(tidycensus)
library(tidyverse)

wyoming_age <- get_acs(geography = "county", 
                       variables = c(medianage = "B01002_001"), 
                       state = "WY")  

ggplot(wyoming_age, aes(x = estimate, y = NAME)) + 
  geom_errorbarh(aes(xmin = estimate - moe, 
                     xmax = estimate + moe)) + 
  geom_point()

plot margin galat tanpa format

Memformat plot margin galat

wyoming_age2 <- wyoming_age %>%
  mutate(NAME = str_replace(NAME, " County, Wyoming", ""))

ggplot(wyoming_age2, 
       aes(x = estimate, 
           y = reorder(NAME, estimate))) + 
  geom_errorbarh(aes(xmin = estimate - moe, 
                     xmax = estimate + moe)) + 
  geom_point(size = 3, color = "darkgreen") + 
  theme_grey(base_size = 14) + 
  labs(title = "Usia median, county di Wyoming", 
       subtitle = "American Community Survey 2012-2016",
       x = "Estimasi ACS (batang menunjukkan margin galat)", 
       y = "")

plot margin galat terformat

Ayo berlatih!

Menganalisis Data Sensus AS di R