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Scalar Type Predicates
is_scalar_list(x)is_scalar_atomic(x)
is_scalar_vector(x)
is_scalar_numeric(x)
is_scalar_integer(x)
is_scalar_double(x)
is_scalar_character(x)
is_scalar_logical(x)
An object to be tested.
A logical scalar.
Other predicates: predicate-graph,
predicate-matrix,
predicate-numeric,
predicate-trend,
predicate-type,
predicate-utils