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,
Endyr.filter = NULL,
All = FALSE,
Type = "VOL",
evalid = NULL,
invyrs = NULL,
measyrs = NULL,
varCur = "INVYR",
evalType = 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.
Filter. If endyr != NULL, a filter to identify when to use measEndyr, such as areas or plots identified as being disturbed in a particular year. In this example, plots sampled after the disturbance will be excluded.
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.
For extendibility.
Tracey S. Frescino
If no parameters, an empty list is returned.
eval_options(invyrs = 2015:2018)
Run the code above in your browser using DataLab