Module: BioTable::Merge

Defined in:
lib/bio-table/merge.rb

Class Method Summary collapse

Class Method Details

.merge_tables(tables, options) ⇒ Object 



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# File 'lib/bio-table/merge.rb', line 5

def self.merge_tables(tables, options)
  logger = Bio::Log::LoggerPlus['bio-table']
  logger.info("Merging tables")
  headers = tables.first.header[0..0] + 
    tables.map { |t| t.header[1..-1].map{|n| t.name+'-'+n} }.flatten
  t = Table.new(headers)
  # index tables on rownames
  idxs = []
  tables.each do |t|
    idxs << Indexer::create_index(t,[0])
  end
  # create a full list of rownames
  all_rownames = idxs.map { |idx| idx.keys }.flatten.uniq
  
  # walk the tables and merge fields
  all_rownames.each do | rowname |
    row = TableRow.new(rowname)
    fields = tables.map { |t|
      fields = t.find_fields(rowname) 
      row.append(fields)
    }
    t.push(row)
  end
  t

end