CODEWITHSUNDEEP
pythonmatplotlibradar-chart
Elmex80s
Elmex80s

Reputation: 3504

Matplotlib example output significantly differs from website

When I run the Matplotlib api example code: radar_chart.py on my computer the output differs from the result on the Matplotlib website at a crucial point. The zero values, of which there are plenty of them, do not hit the origin of the chart on the Matplotlib website, see the chart at the link. When I run the exact same code on my own computer the zero values do hit the origin. See picture below. This results in a less smooth and readable chart compared to the one on the Matplotlib website, however this is not what one would expect. Could anyone please tell me why this difference exists?

enter image description here

Upvotes: 1

Views: 77

Answers (1)

ImportanceOfBeingErnest
ImportanceOfBeingErnest

Reputation: 339450

The reason for this difference is that the linked example is produced using matplotlib 2.0, while on your computer you run <= 1.5.
It can be observed when looking at the old example on the matplotlib page.

This difference is due to the axes margins being set to 0 in matplotlib 1.5 and to 0.05 in matplotlib 2.0. There are several ways to set the margins, one being plt.margins(x=0.05, y=0.05).

Since here you want to have the same margins for all axes, one easy method is to use rc params. Adding 

plt.rcParams['axes.xmargin'] = 0.05
plt.rcParams['axes.ymargin'] = 0.05

at the top of the script, will set the margins to the values used by default in matplotlib 2.0. Of course you can play around with them and see which values best fit your needs.

Upvotes: 1

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