fit

• full name: tenpy.tools.fit

• parent module: tenpy.tools

• type: module

Functions

alg_decay(x, a, b, c)	Algebraic decay function :math :a * x^{-b} + c.
alg_decay_fit(x, y[, npts, power_range, ...])	Fit y to an algebraic decay of the form :math :a * x^{-b} + c.
alg_decay_fit_res(log_b, x, y)	Returns the residue of an algebraic decay fit of the form x**(-np.exp(log_b)).
alg_decay_fits(x, ys[, npts, power_range, ...])	Batched version of alg_decay().
central_charge_from_S_profile(psi[, exclude])	Fit the entanglement entropy of a finite MPS to the expected profile for critical models.
entropy_profile_from_CFT(size_A, L, ...)	Expected profile for the entanglement entropy at a critical point.
fit_with_sum_of_exp(f, n[, N])	Approximate a decaying function f with a sum of exponentials.
lin_fit_res(x, y)	Returns the least-square residue of a linear fit y vs x.
linear_fit(x, y)	Perform a linear fit y ~ a * x + b.
plot_alg_decay_fit(plot_module, x, y, fit_par)	Utility function used the plot an algebraic fit function next to the data.
sum_of_exp(lambdas, prefactors, x)	Evaluate sum_i prefactor[i] * lambda[i]**x for different x.

Module description

tools to fit to an algebraic decay.