Predictive Hacks

portfolio optimization
Python
George Pipis

Portfolio Optimization in Python

We will show how you can build a diversified portfolio that satisfies specific constraints. For this tutorial, we will build

undersampling
R
George Pipis

Undersampling by Groups in R

When we are dealing with unbalanced classes in Machine Learning projects there are many approaches that you can follow. Just

tidyverse
R
George Pipis

Tidyverse Tips

I have found the following commands quite useful during the EDA part of any Data Science project. We will work

How to Save & Read a Pandas Dataframe Containing Lists and Dictionaries
Python
George Pipis

Pandas GroupBy Tips

This post is a short tutorial in Pandas GroupBy. As always we will work with examples. Let’s create a dummy

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