Returns a list of user-supplied parameters and parameter values for data evaluation (FIA or custom) extraction to be supplied to *DB functions.
eval_options(
Cur = FALSE,
Endyr = NULL,
All = FALSE,
Type = "VOL",
evalid = NULL,
invyrs = NULL,
measyrs = NULL,
varCur = "INVYR",
evalType = NULL,
Endyr.filter = NULL,
Endyr.bnd = NULL,
...
)A list of user-supplied parameters and parameter values for strata.
Logical. If eval='FIA': extract plots with most current evaluation. If eval='custom': extract the most current sampled plots in the database.
Integer (YYYY). If eval='FIA', defines end year for extracting one or more FIA evaluation. If eval='custom', defines end year for extracting the most current sampled plots until.
Logical. If eval='FIA': includes all evaluations in database (annual inventory only). If eval='custom': includes all years in database (annual inventory only).
String vector. Evaluation types ('ALL','CURR','VOL','P2VEG', DWM','INV','CHNG','GRM','REGEN'). If eval='FIA', Type is equivalent to plots for FIA Evaluations where 'ALL' includes nonsampled plots; 'CURR' and 'VOL' include plots used for area or tree estimates, respectively; Type = 'GRM' includes plots used for growth, removals, mortality; and Type = 'CHNG' includes plots used for change estimates (See FIA database manual for regioin availability and/or differences (https://www.fia.fs.usda.gov/library/database-documentation/index.php) If eval='custom', the associated tables are extracted for each Type. Multiple Types are accepted.
Integer. Only eval='FIA': extract data for a specific evaluation period. See notes for more information about FIA Evaluations.
Integer vector. eval='custom': defines specific inventory years of data (e.g., 2010:2015). See FIA manual for definition of INVYR.
Integer vector. eval='custom': defines specific measurement years of data (e.g., 2010:2015).
String. Name of variable to use for most current plot ('MEASYEAR', 'INVYR').
Deprecated. Use Type instead.
Filter. If endyr != NULL, a filter to identify when to use Endyr, such as areas or plots identified as being disturbed in a particular year. In this example, plots sampled after the disturbance will be excluded.
sf object. A boundary to use for filter to idnentify when to use Endyr. The Endyr.bnd is unioned with bnd, then filtered.
For extendibility.
Tracey S. Frescino
If no parameters, an empty list is returned.
eval_options(invyrs = 2015:2018)
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