Combination of other labels (v.6)

The Combination of Other Labels tool is a more intuitive way than the previous method (which is still available if desired). In the new method, click on Combination of Other Labels in the Create Labels form. In this form, you can combine any number of existing labels with an AND joiner (thus creating a logical combination like "Label 1 AND Label 2 AND Label 3 ...") or with an OR joiner ("Label 1 OR Label 2 OR Label 3").

You must select at least one label from the list of labels to proceed to the next step.

Having joined one set of labels, you can then join this set to another set by adding another joiner from the drop-down menu to the right of the first set of labels. This will display another set of labels to be displayed on which you create a similar set of logical joins.

Following are some examples of the kind of logical expressions you can construct with this tool:

(Label 1 AND Label 2) OR (Label 3 AND Lable 4)

(Label 1 OR Label 2) AND Label 3

(Label 1 AND Label 2 AND Label 3) OR (Label 4)

You are only able to create one inner join with this method. However, this complex label ends up being listed on the list of labels as a single label, which can then be joined again through the Combination of Labels. So, by creating two combination labels, you can create a complex logical expression like:

((Label 1 AND Label 2) OR (Label 3 AND Lable 4)) OR ((Label 1 OR Label 2) AND Label 3)

Etc.