Use Case: Automagic Correction of Values
< [n] * 1.01 if n.device = "crappy" or [n] otherwise >
Use Case: gliding Meanvalues (t-aggregation)
< (t - 3 hours .. t].mean > every 1 hour
Use Case: unit aware computation (with absurd time pattern)
< [n] * 0.001 kg/m^2 > every year in Jan..Jun: on Mon ..