Plotting clearing the graph in for loop

Question

I am plotting within a for loop. So that I get a new graph each iteration. Of course I want to clear the graph from the previous iteration. When I use plt.cla() the axis labels and title is also cleared. How can I just remove the graph but keep the axis labels and title?

for n in range(N):
    ax.plot(x[n],t) # plot  
    plt.savefig(f'fig_{n}.png') # save the plot
    plt.cla()

Define the title and labels before the loop then set them again? — wwii, Dec 09 '22 at 15:46
Does [Matplotlib - How to remove a specific line or curve](https://stackoverflow.com/questions/19569052/matplotlib-how-to-remove-a-specific-line-or-curve) answer your question? — wwii, Dec 09 '22 at 15:52
How about [Delete lines in matplotlib](https://stackoverflow.com/questions/2732578/delete-lines-in-matplotlib)? — wwii, Dec 09 '22 at 16:11

score 0 · Answer 1 · answered Dec 09 '22 at 15:14

0

Try plt.clf() - clear figure

for n in range(N):
    ax.plot(x[n],t) # plot  
    plt.savefig(f'fig_{n}.png') # save the plot
    plt.clf()

answered Dec 09 '22 at 15:14

Bhargav - Retarded Skills

3,154
1
6
22

score 0 · Answer 2 · answered Dec 09 '22 at 18:56

Remove lines at the bottom of the loop.

from matplotlib import pyplot as plt
import numpy as np

y = np.arange(10)
fig,ax = plt.subplots()
ax.set_title('foo')
ax.set_ylabel('wye')
ax.set_xlabel('EX')

for n in range(3):
    ln, = ax.plot(y*n)
    fig.savefig(f'fig{n}')
    ln.remove()

Plotting clearing the graph in for loop

2 Answers2