I have a dataset that contains the age (years) of participants and relationship duration (month). I want to create a condition where the datapoints of participants who where younger than 216 month aka 18 yr old, get excluded from the set. So it would need to be something like age - relationship_duration = > 216 month otherwise exclusion.
I can't seem to find my way around the obstacle of connecting the two variables to make it a condition and couldn't really find any solution online. Thanks !