Event PrefixesΒΆ
This plugin is available for longitudinal projects. Its purpose is to allow you to enter a prefix for every event, which will be used in the construction of column names for exports having the longitudinal layout. For these exports, there will be one column per event-field combination, and the naming pattern is
For example, say that the field named tics5 appears on a form that is attached to three events, named 45 Day Interview, 6 Month Interview and 12 Month Interview. In an export having a horizontal layout, each record will have 3 columns for tics, one for each event. The table below illustrates how event prefixes are combined with this field name to generate export column names.
| event name | event prefix | field name | export column name |
|---|---|---|---|
| 45 Day Interview | d45 | tics5 | d45_tics5 |
| 6 Month Interview | m06 | tics5 | m06_tics5 |
| 12 Month Interview | m12 | tics5 | m12_tics5 |
You should choose event prefixes that are as short as possible, but long enough to convey some meaning.
If you do not enter your own custom event prefixes using the YES3 Exporter II Event Prefixes plugin, default prefixes will be used. We strongly recommend that you make up your own custom prefixes. See the SAS variable names topic in the Generated SAS Code section for a more thorough discussion of the implications of event prefixes on export column names.
screenshot of the YES3 Exporter II Event Prefixes plugin
