Get values of data used in expressions

Source: R/taxonomy--docs.R

Get values available for non-standard evaluation in a taxonomy() or taxmap() object used in expressions. Expressions are not evaluated and do not need to make sense.

obj$data_used(...)

Arguments

obj

a taxonomy() or taxmap() object
...

One or more expressions

Value

list

See also

Other NSE helpers: all_names(), get_data(), names_used

Examples

# Get values for variables names used in expressions
ex_taxmap$data_used(n_legs + dangerous == invalid_expression)

#> $n_legs
#> m n o p q r 
#> 4 4 4 2 0 0 
#> 
#> $dangerous
#>     m     n     o     p     q     r 
#>  TRUE FALSE FALSE  TRUE FALSE FALSE 
#> 
ex_taxmap$data_used(length(unique(taxon_names)))

#> $taxon_names
#>              b              c              d              e              f 
#>     "Mammalia"      "Plantae"      "Felidae" "Notoryctidae"    "Hominidae" 
#>              g              h              i              j              k 
#>   "Solanaceae"     "Panthera"        "Felis"   "Notoryctes"         "homo" 
#>              l              m              n              o              p 
#>      "Solanum"       "tigris"        "catus"     "typhlops"      "sapiens" 
#>              q              r 
#> "lycopersicum"    "tuberosum" 
#>