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thoughts about data science and analytics

Why Become a Data Scientist? (7+1 Selfish Reasons)

Why become a data scientist? From time to time, I get this question from people who are flirting with the idea of becoming a data professional. Since you…

statistics in data science and analytics

Statistical Averages – Mean, Median and Mode

As I have mentioned several times, Data Science has 3 important pillars: Coding, Statistics and Business. To succeed, you have to be well-versed in all three. In this…

coding in data science and analytics

Python For Loops Explained (Python for Data Science Basics #5)

Remember, that I told last time that Python if statements are similar to how our brain processes conditions in our everyday life? That’s true for for loops too….

coding in data science and analytics

Python Built-in Functions and Methods (Python for Data Science Basics #3)

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…

coding in data science and analytics

Python 2 vs Python 3

“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….

thoughts about data science and analytics

Data Analytics Basics (introduction)

You might have heard, that Data Scientist ranked as the best job of 2017 in the USA (based on Glassdoor’s research). Recently many IT professionals started considering to…

coding in data science and analytics

Python Data Structures (Python for Data Science Basics #2)

Where we left 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…

coding in data science and analytics

Python for Data Science – Tutorial for Beginners #1 – Python Basics

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…

statistics in data science and analytics

Statistical Bias Types explained (with examples) – part1

Humans are stupid. We all are, because our brain has been made that way. The most obvious evidence to this built-in stupidity is the different biases, that our…

coding in data science and analytics

SQL for Data Analysis – Tutorial – ep6 (advanced stuff)

This is the final episode of the SQL for Data Analysis – Tutorial for Beginners series. Today I’ll show you some more advanced SQL moves! Though junior data…

conversion rate optimization cro

Website Heatmaps – Tools, Features & Best Practices

Heatmapping is a simple and efficient way to analyze visitor interaction and user behavior on your website. If you are in a Conversion Rate Optimization (aka. CRO) project…

coding in data science and analytics

SQL for Data Analysis – Tutorial for Beginners – ep5

Combining tables is a key component, when you are doing data analysis. And SQL is really good at it! Of course each case is different, but I’ve run…

coding in data science and analytics

SQL for Data Analysis – Tutorial for Beginners – ep4

You have already learnt a lot about the basics of SQL for data analysis. I figured, it would be nice to have now an episode focusing only on…

coding in data science and analytics

SQL for Data Analysis – Tutorial for Beginners – ep3

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…

coding in data science and analytics

SQL for Data Analysis – Tutorial for Beginners – ep2

This is the second episode of my SQL for Data Analysis (for beginners) series and today I’ll show you every tiny little details of the SQL WHERE clause….

coding in data science and analytics

How to install SQL Workbench for postgreSQL

In my previous SQL for data analysis tutorial I’ve briefly mentioned, that I prefer SQL Workbench over pgadmin4 for SQL querying. Today I will show you, how you can install it…

coding in data science and analytics

SQL for Data Analysis – Tutorial for Beginners – ep1

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…

conversion rate optimization cro

Usability testing (for Data Analysts)

Usability testing is a widely used research method to collect detailed and direct qualitative user feedback about your product (or website, mobile application, anything…) What is it exactly…

coding in data science and analytics

Data Coding 101 – Intro to Bash – ep6 (last episode)

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…

coding in data science and analytics

Data Coding 101 – Intro To Bash – ep5

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…