def headinside(self):
        """The head inside the well
        
        Returns
        -------
        array (length number of screens)
            Head inside the well for each screen
            
        """
        
        h = self.model.head(self.xw + self.rw, self.yw, layers=self.layers)
        return h - self.resfac * self.parameters[:, 0]
The head inside the well
        
        Returns
        -------
        array (length number of screens)
            Head inside the well for each screen