User guide

88
Label Studio User’s Guide
Set up units
You can tell Label Studio to read values from certain fields in your input file and
then group the output files accordingly. Label Studio calls these groups of records
with common input file values units. Define your unit breaks in the Input Options
window.
The following examples show how to set up your Unit Break Definition and Unit
Break Description parameters for one description or multiple descriptions.
One Unit Break
Description
Even if you want multiple unit breaks, you only need to set up one Unit Break
Definition and Description. However, each unit must use the same value in the
Unit Break Definition, meaning that each field must change according to the
same principal (for example, first, last, or change).
For example, suppose you want to create unit breaks based on Entry Point and
then Segment.
To do this:
1. Define the following in your .def file:
PW.Unt_Brk1 = DB.Seg_No & DB.Ent_Pt_No
2. Open the Input Options block, click the Definition & Description button.
3. Define only one of the following in the Unit Break Description box (they
both work similarly):
4. Choose from the drop-down list the Unit Break Definition according to how
each field changes, the example above is defined as Change.
Note: Each component of PW.Unt_Brk1 must change according to the
same principle (first, last, or change) because you can only define it once
from the drop-down menu.
alltrim(DB.Seg_No)