rSFSW2: Simulation Framework for SOILWAT2

The copy includes all design tables and their full content and a subset of the records and/or fields of the output tables.

dbOutput_subset(
  dbOut_fname,
  dbNew_fname,
  fields_include = NULL,
  fields_exclude = NULL,
  subset_scenarios = NULL,
  subset_experiments = NULL,
  verbose = FALSE
)

`dbOut_fname`	A character string. The file path of the main `dbOutput`.
`dbNew_fname`	A character string. The file path and name of the new copy of the database with a subset of the values of `dbOutput`.
`fields_include`	A named list of vectors with character strings. The field names per table to be selected. Each table is represented by a correspondingly named element. If `NULL`, then all tables and all fields are included. If a named element is `NULL`, then all fields of the corresponding table are included. Except for those fields listed in `fields_exclude`.
`fields_exclude`	A named list of vectors with character strings. The field names per table to be excluded from the subset. Each table is represented by a correspondingly named element. If `NULL`, then no fields are excluded from the subset operation.
`subset_scenarios`	A vector of character strings. If not `NULL`, then only records are copied with a `P_id` that belongs to an included scenario.
`subset_experiments`	A vector of character strings. If not `NULL`, then only records are copied with a `P_id` that belongs to an included experimental treatment label. This and the `subset_scenarios` condition are combined with a logical `AND`.
`verbose`	A logical value.