Missing Method in ProductsController

Error: The action showByGroup is not defined in controller ProductsController

Error: Create ProductsController::showByGroup() in file: pilot_app/controllers/products_controller.php.

<?php
class ProductsController extends AppController {

	var $name = 'Products';


	function showByGroup() {

	}

}
?>

Notice: If you want to customize this error message, create pilot_app/views/errors/missing_action.ctp.