One of the the questions that I get over and over is, which data science language do I use? I have my own preferences with regards to programming languages, but there’s not always a clear answer. In fact, my standard answer is “it depends.” You see, different languages are good for different things. But what … Read more
I have a confession. I’m an American, and I was raised an American. But, I’ve been semi-nomadic for almost 10 years. A “digital nomad.” That is, I’ve lived in many countries around the world since about 2014 (although, I also lived a substantial amount of time in Austin, Texas during the last 10 years). I’m … Read more
In this tutorial, I’ll show you how to do some simple exploratory data analysis (EDA) for a machine learning project. In this tutorial, we’ll look at the Titanic dataset, which is commonly used in machine learning tutorials, and has previously been used as a Kaggle dataset. This tutorial will really only scratch the surface. There’s … Read more
Recently, I wrote a blog post stating that I’m starting to use Python for most of my data science work. And I’m starting to recommend Python as the data science language to use for most beginners. But is it always best? No. As always, it depends: As I like to ask people: “Who are you … Read more
Probably the most common question I get from new data science students is, “Which language should I learn … R or Python?” This is a somewhat complex question to answer, because it depends on who you are and what your goals are. Having said that, I do have a preference for first time data scientists. … Read more
In this tutorial, I’ll explain how to use the Pandas replace technique to change values inside of a Pandas dataframe. I’ll explain what the technique does, explain the syntax, and show you step-by-step examples. If you need something specific, you can click on any of the following links. Table of Contents: Introduction Syntax Examples Frequently … Read more
In this tutorial, I’ll show you how to use the Pandas mean technique. The mean() technique calculates the mean of the the numeric values in a Pandas dataframe or Pandas series. So in the tutorial, I’ll explain how we use the technique, how the syntax works, and I’ll show you step-by-step examples. If you need … Read more
In this tutorial, I’ll show you how to use the Pandas sum technique. The sum() technique sums up the numeric values in a Pandas dataframe or Pandas series. So in the tutorial, I’ll explain how we use the technique, how the syntax works, and I’ll show you step-by-step examples. If you need something specific, just … Read more
In this tutorial, I’ll show you how to use the Pandas count technique to count the records in a Pandas dataframe. I’ll explain exactly what the technique does, how the syntax works, and I’ll show you step-by-step examples so you can see Pandas count in action. If you need something specific, just click on any … Read more
This tutorial will explain how to create a ggplot boxplot. It explains the syntax, and shows clear, step-by-step examples of how to create a boxplot in R using ggplot2. If you need something specific, you can click on any of the following links, and it will take you to the appropriate section in the tutorial: … Read more