Returns a list of user-supplied parameters and parameter values for unit.
unit_options(
unitvar2 = NULL,
areaunits = "acres",
minplotnum.unit = 10,
unit.action = "keep",
npixelvar = "npixels",
...
)A list of user-supplied parameters and parameter values for strata.
String. Name of a second level estimation unit variable in unitarea and cond or pltassgn with assignment for each plot (e.g., 'STATECD').
String. Units of areavar in unitarea ('acres', 'hectares').
Integer. Minimum number of plots for estimation unit.
String. What to do if number of plots in an estimation unit is less than minplotnum.unit ('keep', 'remove' 'combine'). If unit.action='keep', estimation units with less that minplotnum.unit will be kept in output tables; if unit.action='remove', the estimation units with less that minplotnum.unit will be removed from the output tables; and if unit.action='combine', combines estimation unit to the following estimation unit, ordered in stratalut or unitzonal.
String. Name of variable in unitlut defining number of pixels by estimation unit.
For extendibility.
Grayson W. White
If no parameters, an empty list is returned.