Hey, I'm Tomi Mester. This is my data blog, where I give you a sneak peek into online data analysts' best practices. You will find articles and videos about data analysis, AB-testing, research, data science and more…Tag: data analysis
Let’s continue with the pandas tutorial series. This is the second episode, where I’ll introduce aggregation (such as min, max, sum, count, etc.) and grouping. Both are very…
Pandas is one of the most popular Python libraries for Data Science and Analytics. I like to say it’s the “SQL of Python.” Why? Because pandas helps you…
Connecting Google Data Studio to your PostgreSQL database is easier than you would think. I will walk you through the whole process step by step. By the end…
Working with SQL for data analysis sometimes requires creating new tables. Do you want to store the output of your SQL queries? Do you need to pull new…
Last time I wrote about why it’s worth it to become a data scientist. This time I’d like to answer another important and very common data science career…
Learning SQL is very useful for anyone in the online world. And it’s a definite must for Data Analysts/Scientists! Here are 8 articles to start with…
Today I’ll show you the most essential SQL functions that you will use for finding the maximums or the minimums (MAX, MIN) in a data set and to…
SQL (Structured Query Language) is a must if you want to be a Data Analyst or a Data Scientist. I have worked with many online businesses in the…