1.5.12.3. Detrending a signalΒΆ

scipy.signal.detrend() removes a linear trend.

Generate a random signal with a trend

import numpy as np
t = np.linspace(0, 5, 100)
rng = np.random.default_rng()
x = t + rng.normal(size=100)

Detrend

import scipy as sp
x_detrended = sp.signal.detrend(x)

Plot

import matplotlib.pyplot as plt
plt.figure(figsize=(5, 4))
plt.plot(t, x, label="x")
plt.plot(t, x_detrended, label="x_detrended")
plt.legend(loc="best")
plt.show()
plot detrend

Total running time of the script: (0 minutes 0.049 seconds)

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