Method: CSV::Table#by_col

Defined in:
lib/csv.rb

#by_col ⇒ Object

Returns a duplicate table object, in column mode. This is handy for chaining in a single call without changing the table mode, but be aware that this method can consume a fair amount of memory for bigger data sets.

This method returns the duplicate table for chaining. Don’t chain destructive methods (like []=()) this way though, since you are working with a duplicate.



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# File 'lib/csv.rb', line 603

def by_col
  self.class.new(@table.dup).by_col!
end