We have NAs neutral or negative. But in some short models, not having data gives it edge. Is it conceivable to have NA's rank positively for shorts?
IsNA will replace an absolute number but not sure how to make it rank the highest for an NA.
Simply switching the arrow at the top of your ranking system will make NAs rank high if NAs are not neutral.
I am not sure what you mean. No matter which way I put the arrow, the NAs should always be the lowest ranked when I rank NAs negative. The arrow should only flip the order of non-NA numbers.
But maybe I am not understanding you correctly.
When you put a composite node as Lower is Better , it will put the NA's on top with NA Negative.
In fact using "lower is better" in a composite should give the user a warning that NA's will be on top. Adding a task for this.
Didn't know this. Thank you Yuval and Marco