Category: Data

Alpha vs beta datasets

There are some ingredients that are pretty common. Just because they’re commonly used, does not make them unimportant. If anything, they are the most important when it comes to food. Without common ingredients like flour or oil, it’s going to be quite limiting. By the same token, very rare ingredients are not necessarily the most…

Breaking down quant questions

During the pandemic, a question of where to travel to, hasn’t been uppermost in most of our minds. After all, there’s little point in thinking of travelling when it’s been so difficult, and when our minds have been occupied elsewhere, particularly if you’ve been impacted most by the coronavirus, through illness or through work, such…

Predicting the past

Remembering the past isn’t always easy. I can remember the very worst P&L days of models when I was in a bank (and precisely what triggered the event). Can I remember the best P&L days..? Not a chance. Does that mean there were no good P&L days? Thankfully there were! With burgers, by contrast, I…

First steps when exploring data

It’s exciting travelling to a new place and exploring it. No matter how prepared you might be, it’s always different when your actually there. Photos are useful for points of reference, as might travel guides, yet they always miss parts of the travel experience. Revisiting a place after many years, adds to the mix memories,…