at.latticetools.matching

Matching of lattice parameters.

Functions

match(ring, variables, constraints, *[, copy])

Match constraints by varying variables.

match(ring, variables, constraints, *, copy=False, **kwargs)

Match constraints by varying variables.

Minimisation is performed by the least_squares() function.

Parameters:

• ring (Lattice) – Lattice description

• variables (VariableList) – Variable parameters

• constraints (ObservableList) – Constraints to fulfill

• copy (bool) – If True, return a modified copy of ring, otherwise perform the match in-line

Keyword Arguments:

• method – Minimisation algorithm (see least_squares()). If None, use ‘lm’ for unbounded problems, ‘trf’ otherwise.

• verbose – Level of verbosity

• max_nfev – Maximum number of function evaluation

• dp – Momentum deviation.

• dct – Path lengthening.

• df – Deviation from the nominal RF frequency.

• **kwargs – Keyword arguments sent to least_squares()