How to create line width in Matplotlib
Overview
Line width in the Matplot library is the size of the line of the plot. When we want to give a different look to a data set of our plot compared to others, we must increase the line width of the plot.
The line width helps to give a unique description or visual to a particular data set in a plot.
The default value for the line width of a plot in Matplotlib is 1. However, we can change this size to any size of our choice.
How to change the line width of a plot
We can follow the below step to change the line width of a plot:
- Import the modules and libraries we need for the plot:
matplotlibrarymatplot,numpy, andpyplot. - Create the data set(s) to be plotted.
- In the
plot()method, after declaring thelinewidthparameter, we assign it to any number value we want to represent the desired width of our plot. The code below uses a width size of4:
Pyplot.plot(x, y, linewidth='4')
- Use the
show()method to show the plot.
Example
Let’s illustrate how to change the line widths of different plots:
import matplotlib.pyplot as pltx = [1, 2, 3, 4, 5]y = [2, 4, 6, 8, 10]fig,axs = plt.subplots(2,2)# using the devault linewidth value 1axs[0,0].scatter(x, y)axs[0,0].set_title('Linewidth of 1' )# using the devault linewidth value 1axs[0,1].scatter(x, y, linewidth=2)axs[0,1].set_title('Linewidth of 2' )# using the devault linewidth value 1axs[1,0].scatter(x, y, linewidth=4)axs[1,0].set_title('Linewidth of 4' )# using the devault linewidth value 1axs[1,1].scatter(x, y, linewidth=6)axs[1,1].set_title('Linewidth of 6' )plt.tight_layout()plt.show()
Interestingly, we can also add markers to the line width. See this Answer for more on this topic.
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