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Counting is hard, especially when you don't have theories
Big Data

Counting is hard, especially when you don't have theories

Exploring the data about movies, uncovering data issues
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Pre-processing data is not just about correcting errors
Algorithms

Pre-processing data is not just about correcting errors

Exploration of IMDB rating data, by Kaiser Fung, founder of Principal Analytics Prep
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Good models + Bad data = Bad analysis
Aggregation

Good models + Bad data = Bad analysis

Example showing how to diagnose bad data in data science models
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When to use the start-at-zero rule
start-at-zero rule

When to use the start-at-zero rule

Guide to a basic graphical rule
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Depicting imbalance, straying from the standard chart
Aggregation

Depicting imbalance, straying from the standard chart

My friend Tonny M. sent me a tip to two pretty nice
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Dot plots are under-valued, that's all
Bar chart

Dot plots are under-valued, that's all

Bar charts are over-used and over-rated. Just casually, I found
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