Hi im developing, a Cross-tabulation format, which works very well; it does Kappa calculations but in the part of the data entry there is the: Data, the reference and Code. I need the code to change automatically depending on the criteria

If al data is: Reference: Code:
P P P P P P P P +
N N N N N N N N -

if at least one data is diferent then code will be X.

I hope someone can help me with this.

Regards