Function to update background data
update_background(df, well, param, start = NULL, n_end = 8, n_prop = 4)
| df | data frame of groundwater data in tidy format |
|---|---|
| well | the location to update |
| param | the constituent to update |
| start | the start date of the background data. IF not provide the start of the data will be found using @seealso [start_date()] |
| n_end | the number of samples in current background. The date will be found from this sample. |
| n_prop | the number of samples to include in the proposed background |