Create New Column on spotfire Data table using python script

curDT = Document.ActiveDataTableReference cols = curDT.Columns #targetCol = Document.Properties["myColumnSelection"] #Create a new column that counts the comma delimiter myExpression = "sum([Goods]) over([statecode])" myNewColName = cols.CreateUniqueName("TotalRevenue") cols.AddCalculatedColumn(myNewColName, myExpression)