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Twinning dictionary version 1.0
_twin_individual_id
Name:'_twin_individual_id'
Definition:
The unique identifier for this twin individual. The twin for which _twin_individual_twin_matrix_ is the identity matrix is called the reference twin. It is recommended that the reference twin be labelled '1'.
Appears in list as essential element of loop structure
May match subsidiary data name(s)
_twin_refln_individual_id
Type: char
Category: twin_individual