Wow, we covered a lot! Let’s export our finished line chart.
To export a chart, we just call the function plt.savefig()
, giving the filename we want as an argument. So, to save a line chart as ‘my_lineplot.png’, we could simply call:
plt.savefig('my_lineplot.png')
Plots will default to .png format, but we can also specify the format as a parameter and save a plot as a .jpeg, .pdf, or .svg filetype, among others.
Two other helpful parameters are dpi
and bbox_inches
.
dpi
allows us to set the resolution: the number of pixels in the image, or essentially, how big it is. This works the same whether the visualization is a square or a rectangle, which is convenient.
bbox_inches = 'tight'
ensures that our legend, tick labels, and axes aren’t cut off. These elements exist outside the graph figure, but inside the bounding box
or bbox
.
The updated code looks like this:
plt.savefig('my_lineplot.png', dpi=128, bbox_inches='tight')
And that’s that – a line chart from start to finish!
Instructions
Export your line chart as a .png file called line_chart.png
.