enrollcast 0.2.0
swing_schedule() now moves classes up and adds a new
entry class every year, including swing and recovery years (#8). Swing
years are rescaled to the base total and recovery years to the totals
you supply, and the rescaled grades are the ones that move up the next
year. After recovery nothing is rescaled: the projection continues from
the recovered grades with the supplied entry values.- Breaking:
swing_schedule()’s recovery now
takes annual school totals instead of multipliers, grade-specific
recovery matrices are no longer accepted, and entry must
cover the whole horizon. The vignette shows how to convert older
calls.
swing_schedule()’s ratios can be a list
with one ratios table or projection matrix per year, for ratios that
change or grades that open later.- Schedule steps accept an optional
total that rescales
that year’s grades; "base" means the base-year total. The
rescaled grades carry into the next step.
enrollcast 0.1.0
- Initial CRAN release.
progression_ratios() computes progression ratios from
historical grade-level enrollment, with mean, geometric, median, last,
and weighted summaries. It warns about calendar-year gaps across the
complete supplied history before n_years selects the most
recent transitions.progression_matrix() places ratios on the sub-diagonal
of a square projection matrix, leaving the entry-grade row at zero.project_enrollment() advances a base enrollment vector
over an arbitrary horizon, from either ratios or a prebuilt schedule,
overwriting the exogenous entry grade each year. Missing schedule
coefficients are preserved with an aggregate warning rather than
imputed.swing_schedule() builds per-year schedules that hold
enrollment flat during swing years, apply recovery multipliers, then
resume normal projection.