Class: ERObj

Inherits:
Object
  • Object
show all
Defined in:
lib/rsruby/erobj.rb

Direct Known Subclasses

DataFrame

Constant Summary collapse

@@x = 
1

Instance Method Summary collapse

Constructor Details

#initialize(robj) ⇒ ERObj

Requires an RObj for intialization.



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# File 'lib/rsruby/erobj.rb', line 50

def initialize(robj)
  @robj = robj
  @r    = RSRuby.instance
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(attr) ⇒ Object 



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# File 'lib/rsruby/erobj.rb', line 89

def method_missing(attr)
  mode = RSRuby.get_default_mode
  RSRuby.set_default_mode(RSRuby::BASIC_CONVERSION)
  e = @r['$'].call(@robj,attr.to_s)
  RSRuby.set_default_mode(mode)
  return e
end

Instance Method Details

#as_r ⇒ Object

Returns the wrapped RObj when RSRuby attempts to convert it to R.



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# File 'lib/rsruby/erobj.rb', line 57

def as_r
  @robj.as_r
end

#lcall(args) ⇒ Object

Calls the wrapped RObj.



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# File 'lib/rsruby/erobj.rb', line 62

def lcall(args)
  @robj.lcall(args)
end

#to_s ⇒ Object

Outputs the string representation provided by R.



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# File 'lib/rsruby/erobj.rb', line 67

def to_s

  @@x += 1

  mode = RSRuby.get_default_mode
  RSRuby.set_default_mode(RSRuby::NO_CONVERSION)
  a = @r.textConnection("tmpobj#{@@x}",'w')

  RSRuby.set_default_mode(RSRuby::BASIC_CONVERSION)
  @r.sink(:file => a, :type => 'output')
  @r.print_(@robj)
  @r.sink.call()
  @r.close_connection(a)

  str = @r["tmpobj#{@@x}"].join("\n")

  RSRuby.set_default_mode(mode)

  return str

end