code: def _add_study(self,study):
  		
  		str='{study} {name}({period})' if study['params'].get('str',None)==None else study['params']['str']
  		study['params']['str']=str
  
  		if not study['name']:
  			study['name']=ta.get_column_name(study['kind'].upper(),study=study['kind'],
  												str=str,
  												period=study['params'].get('periods',None),
  												column=study['params'].get('column',None))
  				
  
  		restore=study['display'].pop('restore',False)
  		
  		if restore:
  			_=self.studies.pop(study['kind'],None)
  
  		if study['kind'] in self.studies:
  			try:
  				id='{0} ({1})'.format(study['kind'],study['params']['periods'])
  			except:
  				id='{0} ({1})'.format(study['kind'],'(2)')
  		else:
  			id=study['kind']
  
  		_id=id
  		n=1
  		while id in self.studies:
  			id='{0} ({1})'.format(_id,n)
  			n+=1
  		self.studies[id]=study
docs: Adds a study to QuantFigure.studies
  
  		Parameters:
  			study : dict
  				{'kind':study_kind,
  				 'params':study_parameters,
  				 'display':display_parameters}