Issue with calculating a value in Generate Attribute
I have two columns, Price 1 and Price 2.
Price 1 is of type integer and Price 2 is of type Nominal.
I only want to create an additional column Price difference (%) which divides price 1 with price 2 in Generate Attributes.
Using two different types (real & Nominal) generates the error message ' Error evaluating exprisions. Must have arguments of the same type' which sounds reasonable. However, when I change the Price 1 column to Nominal (Numerical to Polynominal) and both have type Nominal i receive the following error message 'Must have arguments of the type 'Numerical'). Not sure what the best approach here would be?