Takes in the model draws and summarizes over them to get quantiles that correspond to the quantiles reported in the COVID-19 Forecast Hub that are used for generating WIS scores.
Value
a long dataframe of all the quantiled values of the model variables columns names include all the things we had in the draws_df + metadata: name, t, value, draw, quantile, include_ww, forecast_date, hosp_reporting_delay, location, data_type, date, ww, daily_hosp_admits, daily_hosp_admits_for_eval, pop, obs_data, period, damp_type