Have you ever had a string and wanted to make it a certain length by adding zeros to it? You could type it out. But we’re programmers, we hate typing! Surely there must be a way to code this? Simple answer: use the str.zfill() method. It takes one argument: the final length of the string …
The line plot is the most iconic of all the plots. To draw one in matplotlib, use the plt.plot() function. Pass it a list of numbers. It uses them as the y-axis values and the list indexes for the x-axis. Easy. In this article, I’ll show you how to add axis labels, plot multiple lines …
Matplotlib Line Plot – A Helpful Illustrated Guide Read More »
Scatter plots are a key tool in any Data Analyst’s arsenal. If you want to see the relationship between two variables, you are usually going to make a scatter plot. In this article, you’ll learn the basic and intermediate concepts to create stunning matplotlib scatter plots. Matplotlib Scatter Plot Example Let’s imagine you work in …
Matplotlib Scatter Plot – Simple Illustrated Guide Read More »
The histogram is one of the most important plots for you to know. You will use it every time you explore a dataset. It is the go-to plot for plotting one variable. In this article, you’ll learn the basics and some intermediate ideas. You’ll plot histograms like a pro in no time using Python and …
Matplotlib Histogram — A Simple Illustrated Guide Read More »
Python comes with several built-in data types. These are the foundational building blocks of the whole language. They have been optimised and perfected over many years. In this comprehensive tutorial, we will explore one of the most important: the dictionary (or dict for short). For your convenience, I’ve created a comprehensive 8000-word eBook which you …
Life is unpredictable. Sometimes good things happen out of the blue like you find $100 on the floor. And sometimes bad things happen, like your flight being canceled because of bad weather. Most programming languages have a module to deal with randomness. Python is no exception coming with the module named random and in this …
Python’s Random Module – Everything You Need to Know to Get Started Read More »
In this article, we’ll be learning about something that is literally everywhere. Whatever corner you turn, whatever street you run down, you can’t get away from it. It is as ubiquitous as the physical space around us. Yes today, we’re talking about… TIME. More specifically, we’re talking about NumPy’s functions that represent dates and times. …
NumPy Datetime: How to Work with Dates and Times in Python? Read More »
In this article, I’ll explain the np.linspace function, how to use it and when you should. It has got a bit of a reputation for being complicated but by the end, you’ll be able to use it perfectly! There are eight possible arguments but we’ll look at the 3 most common for now: start, stop …
