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Data Science

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

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"Raise the price, sell less" is backwards: $200+ Gumroad products sell 3.6x MORE units than $49 ones.

"Raise the price, sell less" is backwards: $200+ Gumroad products sell 3.6x MORE units than $49 ones.

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3 min read
How ICD-10 Codes Map to an HCC / RAF Score (and Why the Same Code Set Yields Different Scores)

How ICD-10 Codes Map to an HCC / RAF Score (and Why the Same Code Set Yields Different Scores)

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2 min read
Beyond the Basics: Streamlit, Dash, and Bokeh for Interactive Dashboards

Beyond the Basics: Streamlit, Dash, and Bokeh for Interactive Dashboards

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5 min read
Translate Chinese University Projects into US Data Engineering Bullets

Translate Chinese University Projects into US Data Engineering Bullets

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3 min read
Bayesian Neural Networks

Bayesian Neural Networks

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4 min read
Is Punxsutawney Phil Actually Any Good at Predicting Spring? I Checked 115 Years of Data

Is Punxsutawney Phil Actually Any Good at Predicting Spring? I Checked 115 Years of Data

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4 min read
Pinnacle Killed Its Public API. Here's How to Get Pinnacle Odds in 2026 (With Code)

Pinnacle Killed Its Public API. Here's How to Get Pinnacle Odds in 2026 (With Code)

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5 min read
How to Scrape YouTube Shorts Data (Exact View, Like & Comment Counts)

How to Scrape YouTube Shorts Data (Exact View, Like & Comment Counts)

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5 min read
Your Clinical Database Is Lying to You (And You Already Know It)

Your Clinical Database Is Lying to You (And You Already Know It)

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7 min read
Point-in-Time Fundamentals Data: What It Is, Why It Matters, and How to Choose

Point-in-Time Fundamentals Data: What It Is, Why It Matters, and How to Choose

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6 min read
Survivorship Bias vs Lookahead Bias: The Two Silent Backtest Killers

Survivorship Bias vs Lookahead Bias: The Two Silent Backtest Killers

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5 min read
Your Backtest Saw the Future: Lookahead Bias in Fundamental Data, Measured Across 313,562 Rows

Your Backtest Saw the Future: Lookahead Bias in Fundamental Data, Measured Across 313,562 Rows

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8 min read
How to Build a Point-in-Time Fundamentals Database from SEC EDGAR (and When Not To)

How to Build a Point-in-Time Fundamentals Database from SEC EDGAR (and When Not To)

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5 min read
How do you measure something that gives a different answer every time?

How do you measure something that gives a different answer every time?

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5 min read
Sleep-stage detection is mostly inference. Be honest about it.

Sleep-stage detection is mostly inference. Be honest about it.

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1 min read
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