Common Data Mistakes

This isn’t meant an an exhaustive list but just the most common errors I’ve seen over the years. Taking the average of values that are already an average Trying to join database tables on fields with different data types Processing data you will later discard, do filtering early on Using averages when mean or mode …

Money As Data

Current ‘Digital’ Money As much as many people use banking apps and send money via their smartphones, money isn’t really digital yet. What do I mean by ‘not digital’? Of course it doesn’t mean you need to physically transfer paper money and metal coins to buy a coffee. You can of course do this digitally …