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: python
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…
Did you know that Python wasn’t originally built for Data Science? And yet today it’s one of the best languages for statistics, machine learning, and predictive analytics as…
So far we have worked with the most essential concepts of Python: variables, data structures, built-in functions and methods, for loops, and if statements. These are all parts…
In my Python workshops and online courses I see that one of the trickiest things for newcomers is the syntax itself. It’s very strict and many things might…
Last time I wrote about Python For Loops and If Statements. Today we will talk about how to combine them. In this article, I’ll show you – through a…
I put together a ‘Python 3 for Data Science’ tutorial series starting from the very basics. It features 9 practical articles – that covers everything you need to know!
Remember that I told you last time that Python if statements are similar to how our brain processes conditions in our everyday life? That’s true for for loops…
We use if statements in our everyday life all the time – even if our everyday life is not written in Python. If the light is green then…
It’s fair to say that using functions is the biggest advantage of Python. At least you will use them a lot during your Data Science projects! This is…
“Should I learn Python 2 or Python 3?” For everyone who has just started to learn Python for Data Science, this is an important initial question to answer….
You might have heard that Data Scientist was ranked as the best job of 2017 in the USA (based on Glassdoor’s research). Recently many IT professionals have started…
Where we did we leave off? Oh, right, we learned about how to use variables in Python. Here is the second essential topic that you have to learn…
If you are learning Data Science, pretty soon you will meet Python. Why is that? Because it’s one of the most commonly used data languages. It’s popular for…
This is the second episode of my SQL for Data Analysis (for beginners) series, and today I’ll show you every tiny little detail of the SQL WHERE clause….
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…
This is the last piece of my “Data Coding 101: Introduction to Bash” series, where I introduce the very basics of how to use the command line for…
In this article I will show you 3 data coding concepts, that won’t only be useful in bash, but Python and R as well! Today we will go…
Data Coding in Bash – this is episode 4! Let’s continue with some basic bash best practices. Today I’ll show you 9 tips, that will make your data coding…
This is the ultimate step by step guide to installing Python, SQL, R and Bash and starting to learn coding for data science. It takes no more than…
In this post I collect the best data – and UX-research – tools and I break them down into 3 categories: 1. The baby steps: this is for you, if…