ESPER check if value is NaN

Question

Hej, does anyone know how I can check in ESPER if a value is NaN? I want to get the slope of some variables which works, but the first value is always NaN. I want to exclude that value. value ='NaN' and value = NaN does not work

Answer 1

Try Double.isNaN(...). On the JVM it is "Double.NaN!=Double.NaN" making "isNaN" the right choice.