Matplotlib is currently using agg, which is a non-GUI backend, so cannot show the figure.
时间: 2023-10-12 10:12:37 浏览: 236
This error message is indicating that you are trying to display a Matplotlib figure using a non-GUI backend (agg), which does not support interactive display. To resolve this issue, you can switch to a GUI backend such as Tkinter or Qt, or save the figure to a file instead of displaying it interactively. Here is an example of how to switch to the Tkinter backend:
```
import matplotlib
matplotlib.use('TkAgg')
import matplotlib.pyplot as plt
# create and display a simple plot
x = [1, 2, 3, 4, 5]
y = [2, 4, 6, 8, 10]
plt.plot(x, y)
plt.show()
```
This code will use the Tkinter backend to display the plot interactively. If you want to save the plot to a file instead, you can use the `savefig` function:
```
plt.savefig('myplot.png')
```
This will save the plot as a PNG image file named `myplot.png`.
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