Blog

Data Science Tutorials

The Junior Data Scientist’s First Month (Video Course)

Tomi Mester December 5, 2022

Learn Python 3 for Data Science – from scratch

Tomi Mester December 4, 2022

Learn SQL for Data Analysis – from scratch

Tomi Mester December 3, 2022

Learn Data Analytics in Bash – from scratch

Tomi Mester December 2, 2022

How to Import Data into SQL Tables

Tomi Mester July 10, 2022

SQL functions (SUM, COUNT, AVG, MIN, MAX) and GROUP BY | SQL for Data Analysis Tutorial, ep3

Tomi Mester June 25, 2022

SQL Interview Questions: 3 Tech Screening Exercises For Data Analysts (in 2022)

Tomi Mester May 31, 2022

Pandas Tutorial 1: Pandas Basics (Reading Data Files, DataFrames, Data Selection)

Tomi Mester May 26, 2022

What’s the best computer/laptop for a data scientist in 2023?

Tomi Mester May 9, 2022

Learning Data Science in 2022 (4 Untold Truths)

Tomi Mester May 2, 2022

Beautiful Soup Tutorial 2. – How to Scrape Multiple Web Pages

Tamas Ujhelyi April 26, 2021

Pandas tutorial 5: Scatter plot with pandas and matplotlib

Tomi Mester June 11, 2020

How to Plot a Histogram in Python (Using Pandas)

Tomi Mester May 15, 2020

Linear Regression in Python using numpy + polyfit (with code base)

Tomi Mester February 20, 2020

Statistical Significance in A/B testing (and How People Misinterpret Probability)

Tomi Mester October 1, 2019

Python For Loops and If Statements Combined (Python for Data Science Basics #6)

Tomi Mester April 11, 2018

Statistical Averages – Mean, Median and Mode

Tomi Mester January 31, 2018

Margin of Error: Formula, Examples, Calculation

Levi Kulcsar March 8, 2023

Data anonymization versus data masking – what’s the difference?

Agnes Fekete October 14, 2022

Correlation: What is it? How to calculate it? .corr() in pandas

Levi Kulcsar October 3, 2022

K-means Clustering with scikit-learn (in Python)

Tamas Ujhelyi September 13, 2022

Pandas groupby(), count(), sum() and Other Aggregation Methods (Pandas Tutorial 2.)

Tomi Mester June 18, 2022

Random Forest in Python (and coding it with Scikit-learn)

Tamas Ujhelyi May 30, 2022

Statistical Bias Types explained (with examples) – part 1

Tomi Mester May 16, 2022

My Computer Setup for Data Science (Apps, Software, Programs and Tools I Use in 2022)

Tomi Mester May 11, 2022

The great data buzz during my maternity leave: tweet and sentiment analysis with Fruzsi

Fruzsi Tulezi April 14, 2022

Coding a Decision Tree in Python Using Scikit-learn, Part #2: Classification Trees and Gini Impurity

Tamas Ujhelyi February 16, 2022

Regression Tree in Python Using Scikit-learn (Code Your Decision Tree Part #1)

Tamas Ujhelyi February 1, 2022

Polynomial Regression in Python using scikit-learn (with a practical example)

Tamas Ujhelyi November 16, 2021

Beautiful Soup Tutorial 4. – Saving Scraped Data to a CSV File, then Analyzing it with Pandas

Tamas Ujhelyi September 14, 2021

What Makes a Good Metric?

Andrea Sipos August 16, 2021