[Help-glpk] Syntax error in data section and others

[Yanyan Xie]

hello, i am a beginner, I have just written a glpk program. following code in Cplex is ok, can anybody tell me, what shuld i it's corrects in GLPK.
param cost :=
      [*,*,r1]:  zul1  zul2 :=
           Her1    30    20
           Her2    22    25 ;
      [*,*,r2]:  zul1  zul2 :=
           Her1    39    30
           Her2    27    25 ;  

another question, how can I correct this sentence? error by running: _expression_ following := has invalid type.
 
var rohTranMenge{r in Roh, i in Zulieferer, j in Hersteller, t in Periode}, >=0;
param sumOutZ{r in Roh, i in Zulieferer, t in Periode} := sum {j in Hersteller} rohTranMenge[r,i,j,t];
 
thanks a lot
 
Best Regards

xie

 

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