Subplot matplotlib code#

The odd thing here is that subplots are indexed starting at 1, not 0 as you might expect. The last number indicates which of those cells to use.

In this case, these numbers mean - take my figure and divide it in such a way that there is 1 row and 2 columns. Then, ignoring all the other subplots, lets just split our figure into two portions, left and right. First, weвЂ™ll define our figure and make it an 8x8 square (the figure size is arbitrary, but works fine for this example). Just looking over the image, it appears that ax1 takes up the left half of the figure area. WeвЂ™ll start with the one labeled ax1 (red). WeвЂ™re going to make the example shown below with 5 subplots of varying sizes. With all this in mind, letвЂ™s try our hand at it. add_subplot() in the matplotlib documentation. So if you define a subplot as (2,3,1), that means to break the subplot into a 2 x 3 grid, and place the new subplot in the first cell of that grid. The key is to understand that the first two integers define the division of the figure, and the last number is the one that actually says where in that division the subplot should go. But what do those numbers actually mean? If the several Stack Overflow posts on the topic, there seems to be some confusion here. add_subplot(1, 2, 3) can be simplified as. If each of those integers are a single digit, they can be simplified into a single three digit integer. It returns an axis object, and takes in three integers. The figure.add_subplot() method is one of the easiest ways to divide an existing figure object into distinct regions of various sizes. Specifically, IвЂ™ll be going over two methods. Just tweak a few parameters and see how they change the subplot youвЂ™re dealing with.ДЇor this article, IвЂ™ll be using my plot planner tool to explain how some features of matplotlibвЂ™s subplot system work. I couldnвЂ™t find quite what I was looking for, so I went ahead and built my own little web app that I call the plot planner! ItвЂ™s a pretty straight forward tool.

Subplot matplotlib code#

I had to get back to basics, and spent some time reading through the docs and scouring Stack Overflow for examples and clear explanations.ДЄs I began to understand how all the intricacies of mateplotlibвЂ™s subplot system worked, I realized that it would be a lot easier to learn if there was a simple UI tool where you could test out your code and see exactly what was happening in your figure. Though I felt comfortable with making basic visualizations, I found out pretty quickly that my understanding of the subplot system was not up to par. I recently worked on a project that required some fine tuned subplotting and overlaying in matplotlib. Subplots in Matplotlib: A guide and tool for planning your plots