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Data Science allows us to extract meaning from and interpret data.

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Customer Segmentation with RFM Analysis in Python (pandas)

Customer Segmentation with RFM Analysis in Python (pandas)

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4 min read
pytrends keeps failing with 429 errors? Here's a one-line fix

pytrends keeps failing with 429 errors? Here's a one-line fix

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3 min read
Build Your First Scikit-learn Pipeline

Build Your First Scikit-learn Pipeline

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3 min read
My Model Had 100% Recall — Then I Realized It Was Predicting "Exoplanet" for Everything

My Model Had 100% Recall — Then I Realized It Was Predicting "Exoplanet" for Everything

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3 min read
A Self-Hostable AI Data Analyst with 4 Agents, Sandboxed Code Execution, and Your Choice of LLM

A Self-Hostable AI Data Analyst with 4 Agents, Sandboxed Code Execution, and Your Choice of LLM

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5 min read
Before You Copy a Senator's Trade, Check the Date

Before You Copy a Senator's Trade, Check the Date

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5 min read
Unicode normalization is not a deduplication key

Unicode normalization is not a deduplication key

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4 min read
I compared 24 booking sites on 47 hotels. Booking.com, Expedia and Hotels.com were ~26% above the cheapest.

I compared 24 booking sites on 47 hotels. Booking.com, Expedia and Hotels.com were ~26% above the cheapest.

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4 min read
Getting Started with Excel for Data Analytics: From Basics to Data Cleaning

Getting Started with Excel for Data Analytics: From Basics to Data Cleaning

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6 min read
I Run a Lottery Model That Publishes Its Own Failures — 51 Draws of Mark Six Data

I Run a Lottery Model That Publishes Its Own Failures — 51 Draws of Mark Six Data

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2 min read
The first thing I check before trusting any dataset

The first thing I check before trusting any dataset

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2 min read
My first excel data cleaning

My first excel data cleaning

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2 min read
I built an hourly crypto "market thermometer" from free data, then refused to let it trade

I built an hourly crypto "market thermometer" from free data, then refused to let it trade

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4 min read
I priced 150 flights across November. Tuesday was the cheapest day to fly, Friday cost 20% more.

I priced 150 flights across November. Tuesday was the cheapest day to fly, Friday cost 20% more.

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4 min read
Five results: I spent time proving splines don't help trajectory databases

Five results: I spent time proving splines don't help trajectory databases

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9 min read
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