综合技术

### Data Science For Business (comprehensive introduction for online businesses)

Doing Data Science without a sense of business is like playing chess without the kings on the board. For every busine...

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综合技术### Data Science For Business (comprehensive introduction for online businesses)

Doing Data Science without a sense of business is like playing chess without the kings on the board. For every busine...

综合技术### Learning Data Science: 4 Untold Truths

Did you flirt with the idea of learning data science? You are not alone. This has been a really hot topic in the last...

综合技术### The Junior Data Scientist’s First Month (Video Course)

Course Curriculum The agenda of the 6 weeks If you enroll, you will receive a data science task every Monday, Wednesd...

综合技术### Pandas Tutorial 3: Important Data Formatting Methods (merge, sort, reset_index, fillna)

This is the third episode of my pandas tutorial series. In this one I’ll show you four data formatting methods that ...

综合技术### Pandas Tutorial 2: Aggregation and Grouping

Let’s continue with the pandas tutorial series. This is the second episode, where I’ll introduce aggregation (such as...

综合编程### Pandas Tutorial 1: Pandas Basics (Reading Data Files, DataFrames, Data Selection)

Pandas is one of the most popular Python libraries for Data Science and Analytics. I like to say it’s the “SQL of Pyt...

综合编程### Python libraries and packages for Data Scientists (the 5 most important ones)

Did you know that Python wasn’t originally built for Data Science? And yet today it’s one of the best languages for ...

综合编程### Python Import Statement and the Most Important Built-in Modules for Data Scientists

So far we have worked with the most essential concepts of Python: variables, data structures, built-in functions an...

综合编程### Python Syntax Essentials and Best Practices

In my Python workshops and online courses I see that one of the trickiest things for newcomers is the syntax itself. ...

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

Last time I wrote aboutPython For LoopsandIf Statements. Today we will talk about how to combine them. In this artic...

存储架构### How to Create a Table in SQL

Working with SQL for data analysis sometimes requires creating new tables. Do you want to store the output of your SQ...

综合技术### Statistical Averages – Mean, Median and Mode

As I have mentioned several times, Data Science has 3 important pillars : Coding, Statistics and Business. To succe...

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

Remember, that I told last time thatPython if statementsare similar to how our brain processes conditions in our eve...

综合编程### Python If Statements Explained (Python for Data Science Basics #4)

We use if statements in our everyday life all the time – even if our everyday life is not written in Python. If th...

存储架构### 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 )...

存储架构### 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 that’s one of the most comm...

存储架构### How not to be biased?

In the last 2 weeks I’ve introduced 9 common statistical bias types. If you went through them, you have already done ...

存储架构### Statistical Bias Types explained – part2 (with examples)

It’s time to continue our discourse about Statistical Bias Types. This is part 2 – if you missed part 1, read it her...

存储架构### 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 s...

存储架构### Data visualisation and discovery with Tableau

The usefulness of visualisations in data analysis is often questioned. At the end of the day, the outcome of the ana...

存储架构### 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 m...

存储架构### How to Create UTM Codes and Track Your URLs

Wouldn’t it be good to know where most of your traffic is coming from? What about email sign ups or even revenue brok...

存储架构### Data Science Fundamentals for Marketing and Business Professionals (video course demo)

This is kind of a special blogpost, because here I share 3 videos from my brand new O’Reilly Video course – calle...

存储架构### 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 ar...

存储架构### 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 c...

综合技术### 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 e...

综合技术### 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 (MA...

存储架构### 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 F...

综合技术### 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 li...

存储架构### 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 ...