Versions Compared

Old Version 21

changes.mady.by.user Gary Walker

Saved on

compared with

New Version 22

changes.mady.by.user Christine Connolly

Saved on

Key

  • This line was added.
  • This line was removed.
  • Formatting was changed.

...

The uniqueness of values by observation or groups of observations can be used to represent relationships efficiently. In cases where values are unique to observations, the variable represented in IDVAR will have values from collected data (e.g., --SPID, --RECID), when possible. When this is not possible, variables with derived values may also be used (e.g., --SEQ, LNKID, --LNKGRP).

Pagenav