Скачать или смотреть How to Fix an Empty Graph When Using Python's Matplotlib

Learn how to troubleshoot and fix your blank graphs in Matplotlib while plotting projectile motion in Python.
---
This video is based on the question https://stackoverflow.com/q/70235273/ asked by the user 'MaxX' ( https://stackoverflow.com/u/15788186/ ) and on the answer https://stackoverflow.com/a/70235335/ provided by the user 'JustBelieveMe' ( https://stackoverflow.com/u/14065175/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

Visit these links for original content and any more details, such as alternate solutions, latest updates/developments on topic, comments, revision history etc. For example, the original title of the Question was: Python matplotlib graph, show empty graph

Also, Content (except music) licensed under CC BY-SA https://meta.stackexchange.com/help/l...
The original Question post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license, and the original Answer post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license.

If anything seems off to you, please feel free to write me at vlogize [AT] gmail [DOT] com.
---
How to Fix an Empty Graph When Using Python's Matplotlib

Are you new to Python and struggling with Matplotlib, only to find that your graph is coming up blank? It can be quite frustrating when you expect to see graphical output but only see an empty plot. This guide will help you identify the problem and guide you through the solution step by step.

The Problem: Blank Output in Matplotlib

When attempting to plot a graph of maximum height and range based on an angle, it can be difficult to pinpoint what's going wrong. The provided code snippet aims to demonstrate projectile motion, but instead of displaying a line, it simply shows a blank graph.

Here's the original problematic code snippet:

[[See Video to Reveal this Text or Code Snippet]]

In the original snippet, you might see a blank graph even after running the program. This is due to the way the plotting function plt.plot() is used.

The Solution: Plotting with Proper Coordinates

The key issue lies in how the plt.plot() function is called. You must provide it with a coordinate that properly represents the points you want to plot. Here’s how to fix this error:

1. Adjusting the plt.plot() Function

Instead of passing individual values to plt.plot(), you should create a tuple of coordinates that will represent your data points. Here’s the corrected line:

[[See Video to Reveal this Text or Code Snippet]]

2. Full Corrected Code Snippet

Here’s how your complete function should now look after addressing the issue:

[[See Video to Reveal this Text or Code Snippet]]

Conclusion

By adjusting the parameters passed to the plotting function, you can effectively display your graph. Remember, visualizing data is a key aspect of programming in Python, and fixing these small errors can lead to beautiful and informative outputs. If you’re facing an empty graph in Matplotlib, always check the way you’re structuring your input for plotting functions. You are now ready to visualize your projectile motion with confidence!

If you have any further questions or need clarification on any specific part of the code, feel free to leave a comment below. Happy coding!