How to make "If" conditional using the legend as a part of the condition

[KiyoshiNagata]

I want to make a conditional "if" with the legend of a grapfh, to make de conditional "if" dinamic based on this legend, how can do it ?
if(condition of days<legend value that I select,value if true, value if not frue)

[amitchandak]

@KiyoshiNagata , If you want a meausre

if( [condition of days]< Max(Table[legend Column]) ,1, 0)

where [condition of days] is a column