Get wastewater data values

Usage

get_ww_values(
  ww_data,
  ww_measurement_col_name = "log_genome_copies_per_ml",
  ww_lod_value_col_name = "log_lod",
  ww_site_pop_col_name = "site_pop",
  one_pop_per_site = TRUE,
  padding_value = 1e-08
)

Arguments

ww_data: Input wastewater dataframe containing one row per observation, with outliers already removed
ww_measurement_col_name: A string representing the name of the column in the input_ww_data that indicates the wastewater measurement value in log scale, default is log_genome_copies_per_ml
ww_lod_value_col_name: A string representing the name of the column in the ww_data that indicates the value of the LOD in log scale, default is log_lod
ww_site_pop_col_name: A string representing the name of the column in the ww_data that indicates the number of people represented by that wastewater catchment, default is site_pop
one_pop_per_site: a boolean variable indicating if there should only be on catchment area population per site, default is TRUE because this is what the stan model expects
padding_value: an smaller numeric value to add to the the concentration measurements to ensure that log transformation will produce real numbers, default value is 1e-8

Value

A list containing the necessary vectors of values that the stan model requires: ww_lod: a vector of the LODs of the corresponding wastewater measurement pop_ww: a vector of the population sizes of the wastewater catchment areas in order of the sites by site_index log_conc: a vector of the log of the wastewater concentration observation