A prerequisite for a Pearson correlation is normal distribution and metrical data. If your data is not normally distributed or you have variables with ordinal data (like grades, or a Likert scale or a ranked variable from “low” to “high”) you can still calculate a correlation with the Spearman rank correlation. This can be done … Read more
💡 Question: Does Python have a for each or foreach loop? If so, how does it work? If not, what is the alternative? This article will shed light on these questions. I’ll give you the summary first and dive into the details later: Python has three alternatives to the “for each” loop: A simple for … Read more
Problem Formulation and Solution Overview This article works with the fictitious Finxter database to retrieve three (3) specific users, via a SQLite query using the IN command. To follow along, click here to download this file and move it into the current working directory. Preparation Add the following code to the top of the code … Read more
In this first article in the series, we’ll start with the basics of what Solidity is, what smart contracts are, how they work, how they are implemented, and then dig right into some cool Solidity examples and details. Terminology Of course, the first question poses itself: what is Solidity? As you could have imagined, Solidity … Read more
Step 1: Get Started In this first article in the series, we’ll start with the basics of what Solidity is, what smart contracts are, how they work, how they are implemented, and then dig right into some cool Solidity examples and details. Of course, the first question poses itself: What is Solidity? As you could … Read more
You can download the slides as a PDF here: Hi, everyone. Thushyanthan here. In this tutorial, I want to share with you some cloud migration strategies for how to move your on-premise workloads to the cloud. Many people are familiar with the top three cloud vendors and they are AWS, Azure and Google Cloud Platform. … Read more
We are going to stick with Python and trading basics for one more lesson, and then we will have to kick it up a notch to move forward. So I want to make sure you have a good foundation and are doing your work to get ready. Intro Requirements for Forex and Python Moving forward … Read more
💬 Question: How to import a CSV file to a Pandas DataFrame in Python? This article will discuss the most interesting examples to read a CSV file to a Pandas DataFrame. If not specified otherwise, we use the following CSV file for all examples: my_file.csv: Name,Job,Age,Income Alice,Programmer,23,110000 Bob,Executive,34,90000 Carl,Sales,45,50000 Let’s get started! Example 1 – … Read more
Mobile app development is a massive skill in the 21st century. In fact, the revenue of the mobile app market worldwide is mobile app revenue in 2022 is $437 billion USD. (Statista) A mobile app developer is a programmer who focuses on software creation for mobile devices such as smartphones or wearables. Most mobile app … Read more
Basic Challenge 💬 Challenge: How to convert a CSV file to a text file in Python? Here’s the content of an example CSV file “my_file.csv” used in our code snippet below: If you visualize this CSV in table form, it looks like this: Name Job Age Income Alice Programmer 23 110000 Bob Executive 34 90000 … Read more
Summary: To initialize multiple variables to the same value in Python you can use one of the following approaches: Use chained equalities as: var_1 = var_2 = value Use dict.fromkeys This article will guide you through the ways of assigning multiple variables with the same value in Python. Without further delay, let us dive into … Read more
Problem Formulation What is the most Pythonic way to convert a CSV file to a list of dictionaries, a list of tuples, and a list of lists? Let’s go over those challenges one by one. 💫 Note: I only show you the most Pythonic solution to each problem — based on my personal opinion — … Read more