An Introduction and Example — This is the final post in a 3-part series on Fourier and Wavelet Transforms. In previous posts both the Fourier Transform (FT) and its practical implementation, the Fast-Fourier Transform (FFT) are discussed. In this post, a similar idea is introduced the Wavelet Transform. Once you have a solid understanding of…

Finding hidden factors in data — This is the final post in a two-part series on Principal Component Analysis (PCA) and Independent Component Analysis (ICA). Although the techniques are similar, they are in fact different approaches and perform different tasks. …

A real-world use case and example in Python — My goal with this walk-through is to showcase what data science projects look like in the “real world”. While this is a simple use case, the data and problem are from reality (as opposed to a classroom). Here I will walk through the problem, break down different solutions, and share…

3 Popular Techniques With Python Example Code — This is the 5th article in a series on causal effects. In previous articles, we discussed different ways to compute treatment effects from data. Here I introduce an alternative approach to estimating causal effects via 3 popular regression-based techniques. I finish the article with example Python code of how one…

10 rules that changed the way I think about wealth — Out of all the books in his library, this was the “only one” worth reading. I was never much of a reader in high school or college. …

Breaking down the Back and Front Door Criteria — This is the 4th article in a series on causal effects. In the last article of this series, we explored the question of identifiability. In other words, can the causal effect be evaluated from the given data? There we saw a systematic 3-step process to express any causal effect given…

It may be uncomfortable, but it's good for you — Whether you are employed or unemployed, a seasoned pro or a novice, like it or not, freelancing can be good for you. Before diving into it, a little background on me. I started working in data science during grad school. …