An age per cell, by profile likelihood over a grid of candidate ages.
Parameters
Name
Type
Description
Default
cells
A :class:~falconage.core.FalconData of single cells: mostly NaN, with covered sites near 0 or 1.
required
grid
np.ndarray | None
Candidate ages. Defaults to a 0.5-year grid over the reference’s own fitted range – outside it the linear models are extrapolation.
None
min_sites
int
A cell covering fewer informative sites than this gets NaN rather than a number. Twenty binary observations against a straight line is not an age estimate, and returning one anyway is how a per-cell table fills with confident noise.
20
Returns
Name
Type
Description
One row per cell: the maximising age, how many informative sites it had, the
log-likelihood at the maximum, and the curvature-free width of the peak –
the range of ages within 2 log-likelihood units, which is what says whether
the cell had enough sites to distinguish anything.