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.