Pandas vs Polars: Which One Should You Use in 2025?
Pandas vs Polars: Which One Should You Use in 2025? You’re probably still typing df.groupby() in Pandas while your Polars-using teammate has already f…
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From Raw Prices to Real Signals: Financial Metrics for a Data Pipeline (Daily Return, MA, RSI, MACD, Volatility)
In this article I will share my understanding and use of some financial metrics used in my Financial Dashboard project. You can see it in this link an…
# Turning Data Quality Checks into a Measurable Trust Score
Most data quality problems do not announce themselves loudly. They do not always break a pipeline. They do not always throw an exception. They do not …
Pandas vs SQL, when to use each
Pandas and SQL do a lot of the same things: filter rows, group, aggregate, join. So analysts reasonably ask which to learn and when to use which. The …
Openpyxl's Relevance for Freelance Data Cleaning and Automation in 2023: Addressing Concerns and Solutions
Introduction: The Question of Relevance Imagine you’re a college student, fresh off mastering pandas , and you’re eyeing the freelancing market for da…
Analyzing Steam Games 2025: Genres, Players and User Ratings
As part of my Master in Data Science & AI at Evolve , I worked on a data analysis project using a real Steam games dataset from 2025. The goal of …