Skip to content
Mapping with R has been completely revamped. Check it out →
R for the Rest of Us Logo

Going Deeper with R

Reorder Plots to Highlight Findings

Transcript

Click on the transcript to go to that point in the video. Please note that transcripts are auto generated and may contain minor inaccuracies.

View code shown in video 
# Load Packages -----------------------------------------------------------

library(tidyverse)
library(fs)

# Create Directory --------------------------------------------------------

dir_create("data")

# Download Data -----------------------------------------------------------

# download.file("https://github.com/rfortherestofus/going-deeper-v2/raw/main/data/third_grade_math_proficiency.rds",
#               mode = "wb",
#               destfile = "data/third_grade_math_proficiency.rds")

# Import Data -------------------------------------------------------------

third_grade_math_proficiency <- 
  read_rds("data/third_grade_math_proficiency.rds") |> 
  select(academic_year, school, school_id, district, proficiency_level, number_of_students) |> 
  mutate(is_proficient = case_when(
    proficiency_level >= 3 ~ TRUE,
    .default = FALSE
  )) |> 
  group_by(academic_year, school, district, school_id, is_proficient) |> 
  summarize(number_of_students = sum(number_of_students, na.rm = TRUE)) |> 
  ungroup() |> 
  group_by(academic_year, school, district, school_id) |> 
  mutate(percent_proficient = number_of_students / sum(number_of_students, na.rm = TRUE)) |> 
  ungroup() |> 
  filter(is_proficient == TRUE) |> 
  select(academic_year, school, district, percent_proficient) |> 
  rename(year = academic_year) |> 
  mutate(percent_proficient = case_when(
    is.nan(percent_proficient) ~ NA,
    .default = percent_proficient
  ))

# Plot --------------------------------------------------------------------

third_grade_math_proficiency |> 
  filter(year == "2021-2022") |> 
  filter(district == "Portland SD 1J") |> 
  ggplot(aes(x = percent_proficient, 
             y = school)) +
  geom_col()

third_grade_math_proficiency |> 
  filter(year == "2021-2022") |> 
  filter(district == "Portland SD 1J") |> 
  ggplot(aes(x = percent_proficient, 
             y = reorder(school, percent_proficient))) +
  geom_col()

third_grade_math_proficiency |> 
  filter(year == "2021-2022") |> 
  filter(district == "Portland SD 1J") |> 
  mutate(school = fct_reorder(school, percent_proficient)) |> 
  ggplot(aes(x = percent_proficient, 
             y = school)) +
  geom_col()

Your Turn

  1. Make a bar chart that shows race/ethnicity in Beaverton SD 48J. As before, filter your data to only include 2022-2023 data and only include Beaverton SD 48J. Then, do the following:

  2. Using the reorder() function, make a bar chart that shows the percent of race/ethnicity groups in descending order

  3. Make the same bar chart using mutate() and fct_reorder() to reorder the race/ethnicity groups

Learn More

R for the Rest of Us consultant Albert Rapp has written a blog post on reordering items in plots.

If you want to delve deeper into factors, check out:

Have any questions? Put them below and we will help you out!

You need to be signed-in to comment on this post. Login.

Course Content

44 Lessons