def include_values?(*values)
      @data.any? { |vec| vec.include_values?(*values) }
    end
Check if any of given values occur in the data frame
@param [Array] values to check for
@return [true, false] true if any of the given values occur in the
dataframe, false otherwise
@example
df = Daru::DataFrame.new({
a: [1,    2,          3,   nil,        Float::NAN, nil, 1,   7],
b: [:a,  :b,          nil, Float::NAN, nil,        3,   5,   8],
c: ['a',  Float::NAN, 3,   4,          3,          5,   nil, 7]
}, index: 11..18)
df.include_values? nil
# => true