contains
look at the description of a Variable object and test whether the keywords are in.
Option ignore.case
allows to be case sensitive or not. Default is FALSE
.
Option and
allows to ask for the presence of all keywords (and = TRUE
) or just one or more (and = FALSE
). Default is (and = FALSE
).
signature(keywords = "character", data = "Dataset")
contains
method for a Variable
object. Value is either a Dataset
containing all the variables satisfying the condition on the existence of the keywords, or an empty Dataset
object.
signature(keywords = "character", data = "Variable")
contains
method for a Variable
object. Value is a logical
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