calculate_spline_offset_draws: Helper function to calculate spline offsets for all ccmpp...
In ihmeuw-demographics/popMethods: Methods for Population Estimation

Helper function to calculate spline offsets for all ccmpp inputs

calculate_spline_offset_draws(
  offset_draws,
  detailed_settings,
  draw_col_name = "draw"
)

`offset_draws`	[`list()`] of [`data.table()`] Draws of directly modeled offset parameters for all ccmpp inputs as prepared in the `popReconstruct_*_draws()` functions.
`detailed_settings`	[`list()`] Detailed settings for each ccmpp input and 'population'.
`draw_col_name`	[`character(1)`] Name of column in `offset_draws` [`data.table()`] that corresponds to draw index