testing points

Hi all, I'm a new user of GH and of course HS, I really like the tool,

i'm trying to use it to test some nodes/points on a surface for daylighting illuminance values by looping through each point's illuminance and compare it with max value and then take the next point and test it until one increases the max value provided...

is there a way to do 2 decisions according to the outcomes of the comparison...( like an If Then...else condition) ??

I would like to apologize if my question are repeated

Any thoughts may help.... thanks!