anchor.diff:      _hourlySchedule = HourlySchedule.fromTimeSeriesWithBucket(this);
     }
   
  +
     /// Calculate the value for this curve for any term and any bucket.
     /// If the curve doesn't have a value for any hour in the term you requested
     /// return [null].
  
positive.code:         i += 1;
        }
      }
  //    print(avg);
  //    print(i);
      return avg/i;
    }
  
  
  
  
  
negative.code:     addAll(xs);
      _hourlySchedule = HourlySchedule.fromTimeSeriesWithBucket(this);
    }
    
    /// Construct a forward curve given an input in this form.  The buckets
    /// can be different, but the covering needs to be complete (no gaps.)
    ///   [
  