Fine-Tuning Sets of Hits 
Prerequisites
You have display authorization for the set of hits groups in which the sets of hits you want to choose in this procedure are located.
Procedure
...
1. Load the set of hits that you want to fine-tune, that is to unify with a second set of hits, form the intersection with a second set of hits, or reduce by the specifications in a second set of hits.
2. Choose one of the following steps:
¡
Choose 
with
the quick info text Extend Selection if you want
to unify the sets of hits.
¡
Choose 
with
the quick info text Refine Selection if you want
to form the intersection of the sets of hits.
¡
Choose 
with
the quick info text Reduce Selection if you want
to reduce the set of hits by the specifications of the second set of
hits.
The screen from which you loaded the first set of hits appears.
3. Choose Utilities ® Set of Hits ® Load.
The group overview of the sets of hits is displayed.
4. Double-click the set of hits that you want to unify with the first set of hits, with which you want to form an intersection with the first set of hits, or whose specifications you want to reduce the first set of hits by.
Search criteria entered on the initial screens are not taken into account when the sets of hits are loaded, unified, reduced, or when intersections are formed.
Result
Unifying Sets of Hits
A set of hits is formed that contains all the specifications from the original sets of hits. Specifications that appear in both sets of hits are only included once (union).
Forming the Intersection of Sets of Hits
A set of hits is formed that contains only specifications that appear in both original sets of hits (intersection).
Reducing Sets of Hits
A set of hits is formed that contains only specifications that appear in the first and not in the second set of hits.
Set of hits 1 contains the specifications EHS_01, EHS_02, and EHS_03. Set of hits 2 contains the specification EHS_03.
· If you form the intersection of the set of hits, a set of hits is formed that contains only the specification EHS_03 since this is the only specification that occurs in both the original sets of hits.
· If you reduce the set of hits 1 by the set of hits 2, a set of hits is formed that contains the specifications EHS_01 and EHS_02.
See also: