Create cohort survival data for a district

Generates cohort survival metrics from IL enrollment data.

Usage

il_calc_cohort_survival(df, entry_grade = "K", entry_years = NULL)

Arguments

df

Enrollment data in enrollforecast format (year, grade, enrollment)

entry_grade

Grade to track cohorts from (default "K")

entry_years

Vector of cohort entry years (default: auto-detect)

Value

A data frame with cohort survival metrics