operations - GLPK 多次元パラメータ

Question

GLPK で次のように param Distance を使用するにはどうすればよいですか? param Distance {line in Line, dir in Direction , ori in Station , des in Station};? のように

data;

set Direction := Eastbound Westbound;

set Line := District Piccadilly;

set Station := ACTON_TOWN ALDGATE_EAST ALPERTON ARNOS_GROVE...;

param Distance := #  Line Direction StationFrom StationTo Kilometers
District Eastbound ACTON_TOWN CHISWICK_PARK 1.22
District Eastbound ALDGATE_EAST WHITECHAPEL 0.82
District Eastbound BARKING UPNEY 1.38
District Eastbound BARONS_COURT WEST_KENSINGTON 0.64
District Eastbound BAYSWATER PADDINGTON 0.98
District Eastbound BECONTREE DAGENHAM_HEATHWAY 1.37
...
end;