ecacr

Overview

ecacr is intended to allow R users to create introductory data visualizations of ECAC Hockey teams, games, and players. ecacr makes intensive use of the tidyverse, including dplyr, stringr, and ggplot2. Keep reading to see how you can use ecacr.

Installation

This package can be used “as is” through the devtools::install_github() command.

devtools::install_github("CharlesReinhardt/ecacr")

Team Visualizations

ecacr provides two data visualization templates for team level data.

• scatterPlot() creates a ggplot2 scatter plot of season summary statistics for all ECAC teams. Helps highlight relationships (or lack thereof) between two summary statistics.

• lollipopChart() creates a ggplot2 lollipop chart (minimalist alternative to a bar chart) allowing comparison between ECAC teams by a given statistic.

Game Visualizations

ecacr provides two functions for data visualizations of game level data

• boxplot() creates a ggplot2 boxplot grouped by ECAC team. Shows distribution of the given variable over the course of an entire season.

• winLossChart() creates ggplot2 bar chart that visualizes the win/loss habits of a single ECAC team for an entire season. Can be faceted by home/away.

Individual Visualizations

ecacr also provides two data visualizations for individual player data

• histogram() creates a ggplot2 histogram that shows the distribution of a given stat across all ECAC players.

• overallLeaders() creates a ggplot2 lollipop chart (modified bar chart) of the overall ECAC leaders in a given stat category

Web Scraping

ecacr makes use of rvest to produce a variety of web scraping functions. These are all used internally in the previous data visualization functions for those with no prior ggplot2 experience. Use these functions to scrape the data and then manually create your own visualizations.

• scrapeTeamStats() for team level data

• scrapeGameStats() and scrapeGameStatsByTeam() for game level data

• scrapeIndivStats() and scrapeIndivStatsByTeam() for player level data

Usage

Here are some sample visualizations you can create with ecacr. For more examples, click on the documentation for each individual function.

# Team Visualizations
lollipopChart(var="Assists")

scatterPlot(x="Shots", y="Goals", trend=TRUE, dynamic=FALSE)

# Game Visualizations
winLossChart(team="stlawrence", gender="men", byLocation=TRUE)

boxplot(var="PenaltyMinutes", verbose=FALSE)

# Individual Visualizations
overallLeaders(var="Goals", games="conference", players="skaters", verbose=FALSE)

histogram(var="Shots", players="skaters", verbose=FALSE)