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What is a histogram?

A histogram is a representation of the probability distribution of a dataset. Given a bin width, the range of…

Let’s see if the unstoppable rising of the US index is actually going to stop.

S&P 500 monthly chart

Rise and fall of a perfect index

S&P 500 has proven to be the gold mine for every investor. An investor who bought an ETF on this…

Some thoughts about how the world is changing for 9–5 employees

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Is 9–5 still the best choice?

I have a full-time job and I’ve been working in the same company for 11 years. I’ve seen the world changing around me…

A handy guide on how to calculate confidence intervals in Python

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What is a confidence interval?

Imagine you ask me my height. I could say that…

A simple method to identify outliers

Photo by Isaac Smith on Unsplash

What is the Interquartile Range?

IQR (Interquartile Range) is the…

Let’s see how to estimate the maximum drawdown of an investment in Python

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What is maximum drawdown?

The maximum drawdown is the maximum…

Let’s see how to increase the stability of a model using bagging technique

Example of bagging. Image by author

Bias-variance tradeoff

In machine learning, the prediction error can be…

Gianluca Malato

Theoretical Physicists, Data Scientist and fiction author. I teach Data Science, statistics and SQL on YourDataTeacher.com

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