Library

CompoundBasis(bases)

Holds a basis composed of several different basis functions, e.g. polynomials of vardatag degree and/or trigonometric functions.

wrapper function for generalized SINDY hamiltonian gradient. Needs the output of fθ_sparse to work! It is in a syntax that is suitable to be evaluated by a loss function for optimization

PolynomialBasis(p)

Holds polynomials of degree p.

TrigonometricBasis(n)

Holds the basis functions [sin(kx), cos(kx)] for 1 ≤ k ≤ n.

returns the number of required parameters depending on whether there are trig basis or not

evaluate(data, basis)

Evaluates a data set on all basis functions in basis.

returns a function that can build the gradient of the hamiltonian

collects and sums polynomial and trignometric combinations of basis

collects and sums only polynomial combinations of basis

makes polynomial combinations of basis

sequential least squares