a week ago
i have this data:
Index Open High
1 4 5
2 6 7
3 8 9
Now i want to generate a new Attribute like
Open - High
In words: I want access data in a Row before, not in the same Row, like Open-High.
Is there a Array-Operator so i can access the data before?
Tank you verry much!
The operator Lag from Time Series extension is able to shift the examples by n. Afterwards youi can go for a Generate Attributes.