Module: ObjectTable::Stacking

Included in:
TableMethods
Defined in:
lib/object_table/stacking.rb

Defined Under Namespace

Modules: ClassMethods, InPlace

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.process_stackable_grid(grid, keys) ⇒ Object 



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# File 'lib/object_table/stacking.rb', line 50

def self.process_stackable_grid(grid, keys)
  case grid
  when TableMethods
    grid = grid.columns
  when BasicGrid
    grid._ensure_uniform_columns!
  end

  raise "Don't know how to join a #{grid.class}" unless grid.is_a?(BasicGrid)
  return if grid.empty?
  raise 'Mismatch in column names' unless !keys or ( (keys - grid.keys).empty? and (grid.keys - keys).empty? )
  return grid
end

.stack_segments(segments) ⇒ Object 



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# File 'lib/object_table/stacking.rb', line 39

def self.stack_segments(segments)
  if segments.all?{|seg| seg.is_a? Array}
    column = NArray.to_na(segments.flatten(1))

  else
    segments.map!{|seg| NArray.to_na seg}
    column = Column._stack(segments)

  end
end

Instance Method Details

#stack(*others) ⇒ Object 



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# File 'lib/object_table/stacking.rb', line 4

def stack(*others)
  __table_cls__.stack(self, *others)
end