Function to check if an element belongs to a category according to a
thesaurus. It is similar to %in% and
is.element, returning a logical vector indicating if each
element in a given vector is included in a given set. But InCategory
checks for equality assuming the equivalencies defined in the given thesaurus.
Usage
InCategory(x, category, thesaurus)
Arguments
x
Character vector to be checked for its inclusion in the category.
category
Character vector identifying the categories in which the
inclusion of x will be checked. Each category can be identified by
any equivalent name in the thesaurus.
thesaurus
A thesaurus object.
Value
A logical vector of the same length as x. Each value answers the
question: Does the corresponding element in x belongs to any of
the thesaurus categories identified by category?