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 ..