ewoksxas.fit.tests.conftest

Shared fixtures synthesising ground-truth peaks for the peak-fit tests.

Peaks are built from silx’s own profile functions (the engine behind the fit), on a noiseless grid, so the fitted center, area, width(s) and mixing are known exactly. peak_factory returns (y, truth) where truth holds the descriptors the fit should recover. An independent lmfit-based Gaussian oracle (lmfit_gaussian) guards against testing silx purely against itself.

Functions

component_list(lca_x)
components(excess_components)
excess_components(lca_x, component_list)
lca_x()
lmfit_gaussian(x)	An independent (lmfit) Gaussian oracle: (y, center, area).
multi_peak_factory(x)	Return a factory building a sum of well-separated Gaussian peaks.
peak_factory(x)	Return a factory building a ground-truth peak and its descriptors.
rand_components(lca_x, component_list)
sample(lca_x, component_list)
x()	A fine, wide x-grid so even broad asymmetric tails decay at the edges.