Suppose I have the following sets and parameter :
param n; #number of individual
param f; #number of household
set N, default{1..n}; #set of individuals
set F, default{1..f}; #set of family
set E, within F cross N;
param H{E};
param G{E};
var O;
param L{E};
F is the index of family and N index of persons in each family. for each family I want do some calculation that I will explain it with the following data:
set E:=
1 1 # first family first person
1 2 # first family second person
1 3 # first family third person
2 1 # second family first person
2 2 ; # second family second person
param G :=
1 1 3
1 2 4
1 3 5
2 1 6
2 2 7;
param H:=
1 1 10
1 2 2
1 3 8
2 1 3
2 2 9;
In the first family I want to add the data of first person from G and add it with 3* the data from 2 others member in first family. that is:
3+3*(2+8)
same for another family.
how I can code this?
How about something like this?
G[1,1] + 3 * sum {i in N: (1,i) in E and i <> 1} H[1,i];
Or, assuming you're going to want to do this for a generic family fam and individual ind (not just family 1 and individual 1):
G[fam,ind] + 3 * sum {i in N: (fam,i) in E and i <> ind} H[fam,i];