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Website Heatmaps – Tools, Features & Best Practices

Creating heatmaps is a simple and efficient way to analyze your website visitors’ interactions and your users’ behavior on your website. If you are running an online business…

coding in data science and analytics

SQL for Data Analysis – Tutorial for Beginners – ep5

Combining tables is a key component of data analysis. And SQL is really good at it! Of course each case is different, but I’ve run into analytical tasks too…

coding in data science and analytics

SQL for Data Analysis – Tutorial for Beginners – ep4

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

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…

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How to Optimize Facebook Campaigns Based on Conversion Data

“How do I optimize Facebook campaigns?” This is the question that I hear all the time from clients to whom I teach Facebook marketing. Of course, it depends…

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 detail 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 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…

Strategy and Business in Data Science and Analytics

The structure of your Data Team. The flow of the data in your organization.

Smaller companies have smaller data teams (maybe just one person), bigger companies have bigger. The tricky thing is that the several different aspects of a data project need…

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Usability testing (for Data Analysts)

Usability testing is a popular research method for collecting detailed and direct user feedback about your online product, website or mobile application. What is it exactly and how…

data_dictionary_book_english

Practical Data Dictionary

I decided to create a dictionary which unifies the most used data expressions and places them within a clear framework. This is an 54 pages handbook and actually it’s…

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 three data coding concepts that won’t only be useful in bash, but Python and R as well! Today we will go…

coding in data science and analytics

Data Coding 101 – Intro To Bash – ep4 (with video)

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 in data science and analytics

Data Coding 101 – Introduction To Bash – ep3

This is third episode of my Data Coding in Bash series. We’ve already set up a fully functioning data server, have learned the basic orientation commands and have learned the…

coding in data science and analytics

Data Coding 101 – Introduction to Bash – ep2

It’s time to continue with learning data science and data coding in Bash! Last time I covered the very basic orientation commands. Now we’re moving on with the…

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The Conversion Rate Optimization Framework I Use at Data36…

… is exactly the same one that many well-known startup and e-commerce companies are using. However, somehow this fundamental CRO framework hasn’t been published anywhere so far! (As…

coding in data science and analytics

Data Coding 101 – Introduction to Bash – ep1

Note: to get the most out of this article, you should not just read it, but actually do the coding part with me! If you don’t have the…

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Five Second Test

Everyone who works on online research projects should use (or at least be familiar with) qualitative methods, too. Even if you are a data scientist who trusts the…

coding in data science and analytics

Google Analytics vs. SQL: When and why to build your own data tools

For the record: I’m a big fan of third-party data tools (e.g. Google Analytics, Hotjar, Crazyegg, Optimizely, Google Optimize). I like them because they are easy to use…