Class: Charty::TableAdapters::DaruAdapter

Inherits:
BaseAdapter
  • Object
show all
Extended by:
Forwardable
Includes:
Enumerable
Defined in:
lib/charty/table_adapters/daru_adapter.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from BaseAdapter

#==, #drop_na, #group_by, #sort_values

Constructor Details

#initialize(data, columns: nil, index: nil) ⇒ DaruAdapter

Returns a new instance of DaruAdapter.



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# File 'lib/charty/table_adapters/daru_adapter.rb', line 15

def initialize(data, columns: nil, index: nil)
  @data = check_type(Daru::DataFrame, data, :data)

  self.columns = columns unless columns.nil?
  self.index = index unless index.nil?
end

Instance Attribute Details

#data ⇒ Object (readonly)

Returns the value of attribute data.



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# File 'lib/charty/table_adapters/daru_adapter.rb', line 22

def data
  @data
end

Class Method Details

.supported?(data) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/charty/table_adapters/daru_adapter.rb', line 11

def self.supported?(data)
  defined?(Daru::DataFrame) && data.is_a?(Daru::DataFrame)
end

Instance Method Details

#[](row, column) ⇒ Object 



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# File 'lib/charty/table_adapters/daru_adapter.rb', line 53

def [](row, column)
  if row
    @data[column][row]
  else
    column_data = if @data.has_vector?(column)
                    @data[column]
                  else
                    @data[column.to_s]
                  end
    Vector.new(column_data)
  end
end

#column_names ⇒ Object 



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# File 'lib/charty/table_adapters/daru_adapter.rb', line 40

def column_names
  @data.vectors.to_a
end

#columns ⇒ Object 



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# File 'lib/charty/table_adapters/daru_adapter.rb', line 32

def columns
  DaruIndex.new(data.vectors)
end

#columns=(values) ⇒ Object 



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# File 'lib/charty/table_adapters/daru_adapter.rb', line 36

def columns=(values)
  data.vectors = Daru::Index.coerce(values)
end

#compare_data_equality(other) ⇒ Object 



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# File 'lib/charty/table_adapters/daru_adapter.rb', line 44

def compare_data_equality(other)
  case other
  when DaruAdapter
    data == other.data
  else
    super
  end
end

#index ⇒ Object 



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# File 'lib/charty/table_adapters/daru_adapter.rb', line 26

def index
  DaruIndex.new(data.index)
end