Data Analysis

Euclidean Distance vs. Mahalanobis Distance

Euclidean distance is not always useful.

Nov 27 • Avi Chawla

11 Types of Variables in a Dataset

Beyond features, targets, etc.

Apr 23 • Avi Chawla

NumPy Cheat Sheet for Data Scientists

40 Methods used 95% of the time.

Apr 17 • Avi Chawla

25 Most Important Mathematical Definitions in DS

...in a single frame.

Apr 11 • Avi Chawla

11 Most Important DS Plots

...summarized visually.

Apr 2 • Avi Chawla

How are QQ Plots Created?

Creating one from scratch.

Mar 20 • Avi Chawla

Ridgeline Plots to Depict Multiple Distributions

Search trends of 2024.

Dec 23, 2024 • Avi Chawla

How to Create a Calendar Plot in Python?

A richer alternative to line plot.

Nov 29, 2024 • Avi Chawla

The No-code Data Science Tool Stack

8 powerful no-code data science tools in a single frame.

Nov 26, 2024 • Avi Chawla

How to Assess Correlation on Ordinal Data?

The problem with Pearson correlation.

Nov 15, 2024 • Avi Chawla

Avoid Using PCA for Visualization Unless

...this plot says so.

Nov 7, 2024 • Avi Chawla

Two Handy Alternatives to Pandas’ Describe

Generate a comprehensive data summary in seconds.

Nov 1, 2024 • Avi Chawla

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