"Generate Aggregation" and "Group by"
I would like to count each unique item in a column, and create a new column with the corresponding count information for each item.
In excel, I would simply use =countif(ColumnA, ColumnA(i)) and copy down.
I expected that to be equally simple in RapidMiner; perhaps using GenerateAttribute. However, this is no "group by" function, and so my count column always returns "1" for each value.
Am I overlooking something?