Construct a tibble containing the quartiles of the CBC values and lagged features

Construct a tibble containing the quartiles of the CBC values and lagged features

create_cbc_features(cbc, cbc_quantiles)

Arguments

cbc	the cbc data tibble
cbc_quantiles	a named list of site-specific quantile functions for each cbc

Value

a tibble of containing cbc variables of interest grouped by date