Animate time series python

import numpy as np
import matplotlib.pyplot as plt
from matplotlib import animation

dt = 0.01
tfinal = 1
x0 = 0

sqrtdt = np.sqrt(dt)
n = int(tfinal/dt)
xtraj = np.zeros(n+1, float)
trange = np.linspace(start=0,stop=tfinal ,num=n+1)
xtraj[0] = x0

for i in range(n):
    xtraj[i+1] = xtraj[i] + np.random.normal()

x = trange
y = xtraj

# animation line plot example

fig, ax = plt.subplots(1, 1, figsize = (6, 6))

def animate(i):
    ax.cla() # clear the previous image
    ax.plot(x[:i], y[:i]) # plot the line
    ax.set_xlim([x0, tfinal]) # fix the x axis
    ax.set_ylim([1.1*np.min(y), 1.1*np.max(y)]) # fix the y axis

anim = animation.FuncAnimation(fig, animate, frames = len(x) + 1, interval = 1, blit = False)
plt.show()

Source: stackoverflow.com

Similar codes

3 votes313 views1 answer
Python Program to check for balanced parentheses in an expression using stack class.
Python
1 vote272 views1 answer
Python program to print ASCII characters in lowercase
Python
0 vote289 views1 answer
Python cron job virtualenv
Python
5 votes291 views1 answer
Mutable and immutable in python
Python
9 votes281 views3 answers
Python array from 1 to n
Python
1 vote278 views1 answer
Keras ensure equal class representation during traingin
Python
0 vote283 views1 answer
Find element in list that matches a condition
Python
8 votes283 views3 answers
How to get index in python
Python
0 vote304 views1 answer
Python monitor directory for files count
Python
0 vote281 views2 answers
Flask abort
Python