spyder is not plotting graph

Issue Report Checklist

• Searched the issues page for similar reports
• Read the relevant sections of the Spyder Troubleshooting Guide and followed its advice
• Reproduced the issue after updating with conda update spyder (or pip, if not using Anaconda)
• Could not reproduce inside jupyter qtconsole (if console-related)
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• Completed the Problem Description, Steps to Reproduce and Version sections below

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[ShubhangJani]

@hubertmucha Hello. I actually figured out the solution (at least from my problem). I was performing K-Nearest Neighbors when doing mine. In my code, my step value was really really small (causing the IDE to crash due to the intense specificity. My step was 0.0001. If you use step = 0.01, it should work for you:

x1, x2 = np.meshgrid(np.arange(start = x_set[:, 0].min() - 1, stop = x_set[:, 0].max() + 1, step = 0.01), np.arange(start = x_set[:, 1].min() - 1, stop = x_set[:, 1].max() + 1, step = 0.01)) plt.contourf(x1, x2, classifier.predict(np.array([x1.ravel(), x2.ravel()]).T).reshape(x1.shape), alpha = 0.75, cmap = ListedColormap((‘red’, ‘green’)))

If you are using Kernel SVM polynomial type, make sure you decrease your degree value.

[bassemkabesh]

I think you will find the answer here https://stackoverflow.com/questions/32774520/why-matplotlib-give-the-error-matplotlib-lines-line2d-object-at-0x0392a9d0