Create ID variable — ID

Create ID variable from one or more variables

Usage

ID_var(
  dat,
  project,
  vars,
  name = NULL,
  type = "string",
  drop = FALSE,
  sep = "_",
  log_fun = TRUE
)

Arguments

dat: Primary data containing information on hauls or trips. Table in FishSET database contains the string `MainDataTable`.
project: Project name.
vars: Character string, additional column(s) in dat that define unique observations.
name: String, name of new ID column.
type: String, the class type of the new ID column. Choices are `string`` or `integar`. `string` returns a character vector where each column in vars is combined and separated by sep. `integer` returns an integer vector where each value corresponds to a unique group in vars.
drop: Logical, whether to drop columns in vars.
sep: Symbol used to combined variables.
log_fun: Logical, whether to log function call (for internal use).

Value

Returns the `MainDataTable` with the ID variable included.

Details

ID variable can be based on a single or multiple variables. Use sep = TRUE if dropping variables that create the ID variable.

Examples

if (FALSE) {
pcodMainDataTable <- ID_var(pcodMainDataTable, "pcod", name = "PermitID", 
        vars = c("GEAR_TYPE", "TRIP_SEQ"), type = 'integar')
pcodMainDataTable <- ID_var(pcodMainDataTable, "pcod", name = "PermitID", 
        vars = c("GEAR_TYPE", "TRIP_SEQ"), type = 'string', sep="_")
}