Module: DF::Import::ClassMethods

Includes:
InferCSV
Included in:
DataFrame
Defined in:
lib/data_frame/core/import.rb

Overview

InferCSV

Instance Method Summary collapse

Instance Method Details

#from_csv(obj, opts = {}) ⇒ Object

This is the neatest part of this neat gem. DataFrame.from_csv can be called in a lot of ways: DataFrame.from_csv(csv_contents) DataFrame.from_csv(filename) DataFrame.from_csv(url) If you need to define converters for FasterCSV, do it before calling this method: FasterCSV::Converters = lambda{|f| f == ‘foo’ ? ‘bar’ : ‘foo’} DataFrame.from_csv(‘example.com/my_special_url.csv’, :converters => :special) This returns bar where ‘foo’ was found and ‘foo’ everywhere else.



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# File 'lib/data_frame/core/import.rb', line 42

def from_csv(obj, opts={})
  labels, table = infer_csv_contents(obj, opts)
  name = infer_name_from_contents(obj, opts)
  return nil unless labels and table
  df = new(*labels)
  df.import(table)
  df.name = name
  df
end