While Model Trains

Read data blog posts.
Carefully handpicked.
Presented 3 at a time.

20 ideas for better data visualization

Taras Bakusevych

A list of 20 tips for great data visualization, including "Always start a bar chart at a 0 baseline" and ""Pick a color palette that matches the nature of your data".

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Why do we minimize the mean squared error?

Alex Molas

A refresher on the theory behind Mean Squared Error.

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Data Cleaning IS Analysis, Not Grunt Work

Randy Au

"The act of cleaning data is the act of preferentially transforming data so that your chosen analysis algorithm produces interpretable results. That is also the act of data analysis."

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