The method '$' retrieves a vector, while '[' retrieves a subset
of the input '>taxlist object.
Details
While the method '$' automatically recognizes the slot queried, provided
that there is no shared column names.
In the method '[', the first index is referred to the rows in slot
'taxonRelations', while the second index indicate the columns in slot
'taxonTraits'.
# NOT RUN {library(taxlist)
data(Easplist)
## Statistics on life formssummary(as.factor(Easplist$lf_behn_2018))
## First ten concepts in this listsummary(Easplist[1:10,], "all")
# }