Hi!
Well, this is very simple to do:
just join the two tables using a joiner node, using Term as a key.
Then u have to rename the columns (positive and negative) and with the help of a math node, calculate the difference between values.
It worked well for the terms that are present in both tables.
But if the term does not exist in the positive table but in the negative table, the term is not displayed in the term column. Instead, there are question marks. How can I fix it?
and as a final step I suggest to use new Joiner node - Joiner (Labs) where you can chose option to Merge join columns and non matching keys will be preserved