Welcome to Nolds’ documentation!

The acronym Nolds stands for ‘NOnLinear measures for Dynamical Systems’. It is a small numpy-based library that provides an implementation and a learning resource for nonlinear measures for dynamical systems based on one-dimensional time series.

Nolds is hosted on GitHub. This documentation describes the latest version. A change log of the different versions can be found on GitHub.

For the impatient, here is a small example how you can calculate the lyapunov exponent of the logistic map with Nolds:

import nolds
import numpy as np
lm = nolds.logistic_map(0.1, 1000, r=4)
x = np.fromiter(lm, dtype="float32")
l = max(nolds.lyap_e(x))


Indices and tables