Hello Rodolfo,
I guess it would be a better idea to format the CSV such that C1 and C2
values go into columns:
ITU,AGU,5
ITU,CEN,6
PMO,AGU,7
PMO,CEN,8
Otherwise use:
set D, dimen 3;
set C2;
set C1 := setof{(i,j,k) in D} i;
param traffic_st{i in C1, j in C2} >=0 :=
if j = "AGU" then sum{(i,k,l) in D} k else sum{(i,k,l) in D} l;
table t1 IN "CSV" "foo.csv" :
D <- [IDX, AGU, CEN];
display traffic_st;
data;
set C2:=AGU CEN;
end;
with foo.csv:
IDX,AGU,CEN
ITU,5,6
PMO,7,8
Please, be aware that GLPK for Windows 4.61 comes with examples for
using the GLPK library with Visual Basic for Applications (VBA).
Best regards
Heinrich
On 03/10/2017 09:00 PM, Rodolfo Grosso wrote:
> Hi,
>
> I want to pass matrix values contained in excel file or csv to a
> matrix parameter, for example, Excel table:
> AGUCEN
> ITU 56
> PMO 78
>
>
>
> So that I can read through the parameter traffic:
>
> traffic[ITU,AGU]=5
> traffic[PMO,AGU]=7
> ...
>
> In the real case there are many values.
>
> For this, I made the following code, but it did not work:
>
> set C1;
> set C2;
> param traffic_st{C1,C2} >=0;
>
> table data IN "CSV" "traffic_st1.csv":
> [i ~ C1], {j in C2} ;
>
> and I define C2 in .dat file like:
>
> set C2:=AGU CEN;
>
>
> Thank you in advance for your help
>
>
> Best regards.
> Rodolfo
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