magento - getting setup model -

I want to create new table from Magenta, without inheriting the setup class, I tried to get the processing model of setup This does not work:

  need_once 'app / Mage.php'; Dana :: init (); $ Setup = Dana :: getResourceModel ('list / setup');   
 I was also thinking about  Dana :: getResourceModel ('core / resource_setup') , but I have an error:  serious error : Call from a member function to startSetup () on a non-object at C: \ xampp \ htdocs \ LPP_MAGENTO_EE_CUSTOM \ app \ code \ core \ Mage \ core \ model \ resource \ Setup.php line 944   
 Do you have any ideas? (I saw but it does not work for me)   
 
 
 I have it set to  $ setup = Mage :: getModel ('eav / entity_setup', 'core_setup')  for example to create a new attribute for the category in my code:  
  need_once 'app / Mage.php '; Dana :: init (); $ Setup = Dana :: MillModel ('eav / entity_setup', 'core_setup'); $ Setup - & gt; Add add ('catalog_mark', 'xxx', array (...));