generate attribute en then remove rows with specific value

Hi, I generated a new attribute from an old one. I kept the values within some specific interval, other values I changed to 1. I want to use in my prediction all values behalve 1, so I want to remove all rows where the value 1 is present. How can I do it? I used the operator 'remove attribute range' (first and last attribute 1), but in my prediction I still see that all the values 1 are present. 

Thank you!