Catherine Williams

Data science portfolio showcasing personal projects, group projects, and competitions.

University Rankings Report

University Rankings

Personal Project: Rankings for universities that offer various data science programs.

Power BI, DAX, Feature Engineering, Data Visualization
Airplane bird strikes by flight phase

Video Games

Tidy Tuesday: Work with Video Games dataset to summarize and arrange data to make meaningful charts.

R, Exploratory Data Analysis, Data Wrangling, Data Visualization
Airplane bird strikes by flight phase

Wildlife Impacts

Tidy Tuesday: Work with R4DS Community Stats dataset to summarize and arrange data to make meaningful charts.

R, Exploratory Data Analysis, Data Wrangling, Data Visualization
Membership rates vs messages posted

R4DS Community Stats

Tidy Tuesday: Work with R4DS Community Stats dataset to summarize and arrange data to make meaningful charts.

R, Exploratory Data Analysis, Data Visualization
Bar chart to show net wins/losses by country

Women's World Cup

Tidy Tuesday: Work with Women's World Cup datasets to summarize and arrange data to make meaningful charts.

R, Exploratory Data Analysis, Data Wrangling, Data Visualization
Seattle weather occurences by season

Seattle Weather

SWD Challenge-July 2019: Identify data that makes sense to plot in a radial view and visualize it.

R, Data Wrangling, Data Visualization
Revenue for franchised novels

Media Franchises

Tidy Tuesday: Work with Media Franchises dataset to summarize and arrange data to make meaningful charts.

R, Exploratory Data Analysis, Data Wrangling, Data Visualization
UFO Sightings by Month and Continent

UFO Sightings

Tidy Tuesday: Work with UFO Sightings dataset to summarize and arrange data to make meaningful charts.

R, Exploratory Data Analysis, Data Wrangling, Data Visualization
Christmas Owl Spottings

Christmas Birds

Tidy Tuesday: Work with Christmas Bird Counts dataset to summarize and arrange data to make meaningful charts.

R, Exploratory Data Analysis, Data Wrangling, Data Visualization
Meteorite Categories Across the World

Meteorites

Tidy Tuesday: Work with Meteorites dataset to summarize and arrange data to make meaningful charts.

R, Data Wrangling, Feature Engineering, Spatial Analysis
UW branded chart

UW Branding

SWD Challenge-June 2019: Test your design design skills and rebrand a particular graph.

R, Branding, Data Visualization
GGRidges Chart

Ramen Ratings

Tidy Tuesday: Work with Ramen Ratings dataset to summarize and arrange data to make meaningful charts.

R, Data Wrangling, Feature Engineering
Decision Tree chart

Movie Awards

Class Group Project: Use regression and decision trees in R to predict movie awards

R, Exploratory Data Analysis, Feature Engineering, Linear Regression, Regression Tree, Random Forest
Food Expenses chart

Food Expenses

SWD Challenge-May 2019: Go out and collect a dataset of your own, analyze it and create a graph visualizing your findings.

Power BI, DAX, Artisanal Data, Bespoke Data
Promotion Analysis report

Promotion Analysis

Class Group Project: Use Power BI to analyze the success of promotions

Power BI, DAX, Dashboarding
Final ROC curve

Titanic Survival

Kaggle Competition: Predict survival on the Titanic using Machine Learning

R, Exploratory Data Analysis, Feature Engineering, Logistic Regression, K-Nearest Neighbors, Random Forest
Chart showing education groups vs. absenteeism at work

Work Absenteeism

Class Group Project: Use R to find out the factors affecting absenteeism at work

R, Exploratory Data Analysis, Feature Engineering, Hypothesis Testing, Linear Regression