This dataset is a template for directed dyad-year data on member states. There is one observation per directed dyad per year.

member_states_ddy

Format

A data frame with 8 variables:

key_id

Numeric. An ID number that uniquely identifies each observation.

year

Numeric. The year.

from_member_state_id

Numeric. An ID number that uniquely identifies each member state.

from_member_state

String. The name of the first member state in the directed dyad.

from_member_state_code

String. A two-letter code assigned to each member state by the Commission.

to_member_state_id

Numeric. An ID number that uniquely identifies each member state.

to_member_state

String. The name of the second member state in the directed dyad.

to_member_state_code

String. A two-letter code assigned to each member state by the Commission.