Learning & Building in Data Science Sharing my journey as I pave my own path through the world of data science
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My name is Joleen, I’m a data scientist and writer and I use this blog to share my passion for data science and statistics.
Blog Every week, I post new articles on data science, statistics and business intelligence. Here are my latest articles.

The Most Common Power BI Functions I Used in 2020
Power BI has been my go-to data visualisation and business intelligence tool for the last 3 years. I have built corporate dashboards with it and used it as my own little exploration tool when I’m tackling a new data set for the first time. Since I’ve been getting more and more proficient at using the […]

Data Science Mindset: Tackling Impostor Syndrome
At what point do you get to declare “I am a data scientist”? How many PhD’s, decades of experience or deep learning models do you need to have under your belt before you feel like a ‘real’ data scientist? The truth is, data science is advancing so rapidly that it really is impossible to keep […]

Blog vs Kaggle vs GitHub: Choosing Where to Publish Your Data Science Portfolio
If you have read my beginners guide to building a data science portfolio then you already know how important it is to find a way to demonstrate your skills, especially if you don’t have any work experience yet. The three most popular platforms for building a portfolio are Github, Kaggle and a personal website or blog. At […]

These Two Types of Projects Should be in Your Data Science Portfolio
The projects in your data science portfolio should show that you have mastery in a particular area within data science. At the end of this post you should know how many projects to include as well as the types of projects that should make up your portfolio. You can demonstrate mastery by following these two […]