Ahmed Azeez

A PhD in Public Health with a passion for data analysis and infectious disease epidemiology — transforming evidence into insight for healthier communities.

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Infographic summarising essential statistical diagnostic tests for ensuring research validity

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Statistical Diagnostic Tests Every Researcher Should Know

May 16 2025 • 5 min read

A practical guide to the diagnostic tests that validate your data before any statistical analysis begins.

statistics, research methods, diagnostics, epidemiology

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Public Health Ethics: Types, Principles and Advantages

February 10 2024 • 6 min read

An overview of public health ethics covering its definition, types, core principles, and the importance of ethical practice for public health professionals.

public health, ethics, epidemiology

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Predicting Infectious Disease Outbreak Severity

January 15 2024 • 12 min read

Data exploration and machine learning in RMarkdown for predicting infectious disease outbreak severity from epidemiological surveillance data.

data viz, machine learning, epidemiology, public health

A spiral bound, lined notebook in the foreground with several balls of crumpled up paper just beyond it.

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Continue, Pivot, or Put It Down

August 20 2020 • 1 min read

Detailing The Pudding’s process to go from idea to data story

The Pudding

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How Rigid is the US Middle Class, Really?

August 20 2020 • 1 min read

Follow the economic mobility of 11,172 middle class families over 50 years

d3.js, data viz, The Pudding

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You Know Karen

June 20 2020 • 1 min read

But do you know the names that could be “other Karens” or “future Karens?” We found them using data.

d3.js, data viz, The Pudding

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The Infinite Monkey Theorem Experiment

April 13 2020 • 1 min read

How long would it take for an infinite number of monkeys with an infinite number of keyboards to play Happy Birthday by randomly mashing keys? We test it out in this live running experiment

d3.js, data viz, The Pudding

Person with long dark hair and a brown coat holds orange tulips beneath a transparent umbrella. Pigeons take flight in the background.

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Where Will You Need Your Umbrella?

February 2 2020 • 1 min read

Seattle may be further down the list than you would think

d3.js, data viz, The Pudding

Yellow lab sticking its head out of a car window. Field and mountain in the background.

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Where Do Adoptable Dogs in Your State Come From?

October 1 2019 • 1 min read

An exploration of PetFinder data

d3.js, data viz, The Pudding

Person sitting on stack of paper-back books

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Hipster Summer Reading List

June 24 2019 • 1 min read

Forget the books that everyone is reading. Here are 200+ books that no one has checked out from the Seattle Public Library in a decade.

d3.js, The Pudding

Pug dog wrapped in a beige blanket on a bed, looking sad.

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Dear Career Switchers: You are not a Failure

June 2 2019 • 10 min read

I have always struggled with failure. Switching careers brought that back full force. Here's what I learned along the way.

failure, random thoughts

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Sing My Name

May 23 2019 • 1 min read

How many artists sing about you (or at least, your namesake)?

d3.js, data viz, The Pudding

Person out of focus, with smaller image visible through camera lens held in hand

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Colorism in High Fashion

April 24 2019 • 1 min read

We looked at 19 years of covers to find how Vogue magazine represents women of all shades.

The Pudding, d3.js, data viz

Person in orange jacket with flowered cap holding basketball above head about to shoot into hoop.

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How many High School Stars Make it in the NBA?

March 4 2019 • 1 min read

Every year the top high school basketball recruits get hyped up. How often do they pan out?

d3.js, The Pudding

Woman in black sports bra wraps measuring tape around her hand.

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The Sexualized Messages Dress Codes are Sending to Students

February 7 2019 • 2 min read

What we learned about sexualization from analyzing 481 high school dress code policies.

d3.js, text analysis, The Pudding

BTS performing "Fake Love" at Seoul Music Awards, 15 January 2019

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Internet Boy Band Database

November 27 2018 • 1 min read

Every boy band to chart the Hot 100 since 1980, rendered as adorable, data-driven, dancing illustrations.

d3.js, lottie, The Pudding

iPhone sticking half way out of back pocket of jeans, while woman looks at mountains in distance

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Women’s Pockets are Inferior

August 15 2018 • 2 min read

If you wear women's clothes, you already know this. But now we've got the data to show it.

d3.js, The Pudding

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Let’s Talk About Birth Control

July 17 2018 • 1 min read

There's no TMI here, just 20,000 people talking about their experiences with contraception.

d3.js, The Pudding

Unfocused image of young boy playing Jenga by stacking blocks

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Making Data Viz Without SVG Using D3 & Flexbox

July 6 2018 • 2 min read

Bye bye tricky SVG alignments.

The Pudding, d3.js, flexbox

three makeup brushes on top of compact powders

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The Diversity of Makeup Shades

June 14 2018 • 1 min read

Rihanna's Fenty Beauty is a champion for makeup inclusivity. But how do other brands across the US and the world compare?

d3.js, The Pudding

Leaning stack of chocolate chip cookies, next to a glass of milk, on a white table.

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Baking the Most Average Chocolate Chip Cookie

May 10 2018 • 1 min read

Cookie recipes written by computers. What could go wrong?

d3.js, The Pudding, text analysis

Orange cat sleeping inside fluffy white pet bed

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Making Multi-Argument Functions & Data Frames Purrr

March 26 2018 • 5 min read

Using the purrr package to iterate over lots of values and return a data frame.

purrr, R

Photo of the space needle against a purple and orange sky.

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A Tale of Two Cities

March 21 2018 • 1 min read

Using data and our own experiences to write love letters to the cities we call home.

d3.js, maps, The Pudding

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Greetings from Mars

February 1 2018 • 1 min read

Exploring today's weather on Mars and in your area through postcard correspondance with the Curiosity Rover.

d3.js, data viz, The Pudding

zoomed in keyboard with pink key with heart on it

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10 Things Everyone Hates About You

December 4 2017 • 1 min read

Exploring over 30 million feelings towards 3,000+ topics using data from a dating app

data viz, The Pudding, d3.js

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Adding Syntax Highlighting to Blogdown Posts

November 15 2017 • 7 min read

My journey into making the code in my blog posts colorful

blogdown, R, tutorial

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How Far is Too Far?

September 8 2017 • 1 min read

An analysis of driving times to abortion clinics in the US

d3.js, maps, The Pudding

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She Giggles, He Gallops

August 22 2017 • 1 min read

Analyzing gender tropes in film with screen direction from 2,000 scripts.

d3.js, The Pudding

A burger on a white plate on a large white table

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Table for One

July 27 2017 • 1 min read

The dining habits and companions of Americans.

d3.js, The Pudding

Silhouetted people of various ages stare into aquarium at several dolphins underwater

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Free Willy and Flipper by the Numbers

July 6 2017 • 1 min read

The past, present, and future of captive whales and dolphins according to data and pop culture.

d3.js, The Pudding, data viz

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The Timing of Baby Making

May 24 2017 • 1 min read

Are more babies born after storms? Or superbowl wins? We investigate the data on timing and geography of births in the US.

d3.js, The Pudding, data viz

Pink, yellow, and green dyed eggs sit in their own individual small nests.

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Nesting and Accessing Data in D3v4

May 2 2017 • 17 min read

My explorations of d3's nesting functions

d3.js, tutorial

Two film reels against a patterned background

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Gender Parity and Dialogue in 2016’s Highest Grossing Films

January 7 2017 • 22 min read

Text parsing, analytics, and d3.js interactive data visualization of movie transcripts

text analysis, R, d3.js

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Mapping Student Course Activity

December 27 2016 • 51 min read

Exploring the courses taken and performance of 103,091 Free Code Camp students.

R, machine learning, data viz

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Making a Website Using Blogdown, Hugo, and GitHub Pages.

December 19 2016 • 23 min read

Wonder how I set up this website using just GitHub pages, Hugo, and RStudio package blogdown? This tutorial walks you through every step.

tutorial, blogdown, github

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Online Data Science Classes

December 17 2016 • 7 min read

A list of the data science courses I've taken, my ratings on them, and comments for future learners.

R, courses

selective focus photography of three brown puppies

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Dog Ownership in Seattle

November 16 2016 • 21 min read

Cleaning, exploring, and mapping dog ownership data in Seattle

R, maps, data viz, data cleaning

Orange and purple bike leaning against a white brick wall

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Bicycle Sharing in Seattle

November 10 2016 • 28 min read

Exploring the usage of Pronto! ridesharing bikes in Seattle

maps, data viz, R

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Ghosts, Goblins, and Ghouls

November 9 2016 • 12 min read

Data exploration and machine learning in RMarkdown for a Kaggle Playground Competition.

data viz, machine learning, R