---
title: "NBA 2023-24: Players with the Highest and Lowest Impact"
subtitle: "Plus/Minus measures point differential when a player is on the court (min. 15 mins/game, 40+ games)"
description: "Visualizing the NBA players with the greatest positive and negative impacts on their teams during the 2023-24 season using Plus/Minus statistics. Day 9 of the #30DayChartChallenge focusing on distribution and diverging charts."
author: "Steven Ponce"
date: "2025-04-09"
categories: ["30DayChartChallenge", "2025"]
tags: [
"NBA", "Basketball", "Sports Analytics", "hoopR", "ggplot2", "Plus/Minus", "Player Impact", "Distribution", "Diverging Chart"
]
image: "thumbnails/30dcc_2025_09.png"
format:
html:
toc: true
toc-depth: 5
code-link: true
code-fold: true
code-tools: true
code-summary: "Show code"
editor_options:
chunk_output_type: inline
execute:
freeze: true
cache: true
error: false
message: false
warning: false
eval: true
# filters:
# - social-share
# share:
# permalink: "https://stevenponce.netlify.app/data_visualizations/30DayChartChallenge/2025/30dcc_2025_09.html"
# description: "Check out my visualization of NBA player impact using Plus/Minus statistics! Who had the biggest positive and negative influence on their teams in the 2023-24 season? #DataVisualization #NBA #30DayChartChallenge"
# twitter: true
# linkedin: true
# email: true
# facebook: false
# reddit: false
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# mastodon: true
# bsky: true
---
{#fig-1}
### <mark> **Steps to Create this Graphic** </mark>
#### 1. Load Packages & Setup
```{r}
#| label: load
#| warning: false
#| message: false
#| results: "hide"
## 1. LOAD PACKAGES & SETUP ----
suppressPackageStartupMessages({
pacman::p_load(
tidyverse, # Easily Install and Load the 'Tidyverse'
tidyverse, # Easily Install and Load the 'Tidyverse'
ggtext, # Improved Text Rendering Support for 'ggplot2'
showtext, # Using Fonts More Easily in R Graphs
janitor, # Simple Tools for Examining and Cleaning Dirty Data
skimr, # Compact and Flexible Summaries of Data
scales, # Scale Functions for Visualization
lubridate, # Make Dealing with Dates a Little Easier
hoopR, # Access Men's Basketball Play by Play Data
camcorder # Record Your Plot History
)
})
### |- figure size ----
gg_record(
dir = here::here("temp_plots"),
device = "png",
width = 8,
height = 10,
units = "in",
dpi = 320
)
# Source utility functions
suppressMessages(source(here::here("R/utils/fonts.R")))
source(here::here("R/utils/social_icons.R"))
source(here::here("R/utils/image_utils.R"))
source(here::here("R/themes/base_theme.R"))
```
#### 2. Read in the Data
```{r}
#| label: read
#| include: true
#| eval: true
#| warning: false
# Get NBA player stats for 2023-24 season
players_2024_raw <- nba_leaguedashplayerstats(season = "2023-24")
players_2024 <- players_2024_raw$LeagueDashPlayerStats
```
#### 3. Examine the Data
```{r}
#| label: examine
#| include: true
#| eval: true
#| results: 'hide'
#| warning: false
glimpse(players_2024)
skim(players_2024)
```
#### 4. Tidy Data
```{r}
#| label: tidy
#| warning: false
### |- Tidy ----
players_2024 <- players_2024 |>
mutate(
PLUS_MINUS = as.numeric(PLUS_MINUS),
GP = as.numeric(GP),
MIN = as.numeric(MIN)
)
# Players with with at least 15 minutes per game and 40 games
filtered_players <- players_2024 |>
filter(MIN >= 15, GP >= 40)
# plot df
plot_data <- filtered_players |>
select(PLAYER_NAME, TEAM_ABBREVIATION, GP, MIN, PLUS_MINUS) |>
arrange(desc(PLUS_MINUS)) |>
# Get top and bottom 25 players by PLUS_MINUS
mutate(rank_group = case_when(
row_number() <= 25 ~ "Top 25",
row_number() > n() - 25 ~ "Bottom 25",
TRUE ~ "Middle"
)) |>
filter(rank_group != "Middle") |>
# Add player names with team abbreviation
mutate(
player_label = str_glue("{ PLAYER_NAME } ({ TEAM_ABBREVIATION } )"),
player_label = fct_reorder(player_label, PLUS_MINUS),
highlight = ifelse(PLUS_MINUS > 0, "Positive Impact", "Negative Impact")
)
# labels df
top_5 <- plot_data |>
arrange(desc(PLUS_MINUS)) |>
head(5)
bottom_5 <- plot_data |>
arrange(PLUS_MINUS) |>
head(5)
label_data <- bind_rows(top_5, bottom_5)
```
#### 5. Visualization Parameters
```{r}
#| label: params
#| include: true
#| warning: false
### |- plot aesthetics ----
colors <- get_theme_colors(
palette = c("Negative Impact" = "#D74A49", "Positive Impact" = "#3F9852")
)
### |- titles and caption ----
# text
title_text <- str_glue("NBA 2023-24: Players with the Highest and Lowest Impact")
subtitle_text <- str_wrap("Plus/Minus measures point differential when a player is on the court (min. 15 mins/game, 40+ games)",
width = 70)
# Create caption
caption_text <- create_dcc_caption(
dcc_year = 2025,
dcc_day = 09,
source_text = "ESPN via { hoopR } package"
)
### |- fonts ----
setup_fonts()
fonts <- get_font_families()
### |- plot theme ----
# Start with base theme
base_theme <- create_base_theme(colors)
# Add weekly-specific theme elements
weekly_theme <- extend_weekly_theme(
base_theme,
theme(
# Text styling
plot.title = element_text(face = "bold", family = fonts$title, size = rel(1.14), margin = margin(b = 10)),
plot.subtitle = element_text(family = fonts$subtitle, color = colors$text, size = rel(0.78), margin = margin(b = 20)),
# Axis elements
axis.title = element_text(color = colors$text, size = rel(0.8)),
axis.text = element_text(color = colors$text, size = rel(0.7)),
axis.text.y = element_text(color = colors$text, size = rel(0.68)),
axis.line.x = element_line(color = "gray50", linewidth = .2),
# Grid elements
panel.grid.minor.x = element_blank(),
panel.grid.major.y = element_blank(),
# Legend elements
legend.position = "top",
legend.title = element_text(family = fonts$text, size = rel(0.8)),
legend.text = element_text(family = fonts$text, size = rel(0.7)),
# Plot margins
plot.margin = margin(t = 10, r = 20, b = 10, l = 20),
)
)
# Set theme
theme_set(weekly_theme)
```
#### 6. Plot
```{r}
#| label: plot
#| warning: false
### |- Plot ----
p <- ggplot(
data = plot_data,
aes(x = player_label, y = PLUS_MINUS, fill = highlight)) +
# Geoms
geom_hline(yintercept = 0, color = "gray40", linetype = "solid", linewidth = 0.5) +
geom_col() +
geom_text(
data = label_data,
aes(label = round(PLUS_MINUS, 0),
hjust = ifelse(PLUS_MINUS > 0, -0.3, 1.3)),
color = "black",
size = 3
) +
# Scales
scale_fill_manual(
values = colors$palette,
name = "Player Impact"
) +
scale_y_continuous(
name = "Plus/Minus",
labels = function(x) paste0(ifelse(x > 0, "+", ""), x),
breaks = seq(-600, 600, 300),
limits = c(-640, 690)
) +
coord_flip() +
# Labs
labs(
title = title_text,
subtitle = subtitle_text,
caption = caption_text,
x = NULL
) +
# Theme
theme(
plot.title = element_text(
size = rel(1.55),
family = fonts$title,
face = "bold",
color = colors$title,
margin = margin(t = 5, b = 5)
),
plot.subtitle = element_text(
size = rel(0.95),
family = fonts$subtitle,
color = colors$subtitle,
lineheight = 1.2,
margin = margin(t = 5, b = 20)
),
plot.caption = element_markdown(
size = rel(0.6),
family = fonts$caption,
color = colors$caption,
lineheight = 0.65,
hjust = 0.5,
halign = 0.5,
margin = margin(t = 10, b = 5)
),
)
```
#### 7. Save
```{r}
#| label: save
#| warning: false
### |- plot image ----
save_plot(
p,
type = "30daychartchallenge",
year = 2025,
day = 09,
width = 8,
height = 10
)
```
#### 8. Session Info
::: {.callout-tip collapse="true"}
##### Expand for Session Info
```{r, echo = FALSE}
#| eval: true
#| warning: false
sessionInfo()
```
:::
#### 9. GitHub Repository
::: {.callout-tip collapse="true"}
##### Expand for GitHub Repo
The complete code for this analysis is available in [`30dcc_2025_09.qmd`](https://github.com/poncest/personal-website/blob/master/data_visualizations/TidyTuesday/2025/30dcc_2025_09.qmd).
For the full repository, [click here](https://github.com/poncest/personal-website/).
:::
#### 10. References
::: {.callout-tip collapse="true"}
##### Expand for References
1. Data Sources:
- ESPN via { hoopR } package: [hoopR](https://github.com/sportsdataverse/hoopR)
:::