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标题: 求解释，为什么下面程序在lingo中没法运行？ [打印本页]

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作者: zt1020306646    时间: 2012-8-31 22:44
标题: 求解释，为什么下面程序在lingo中没法运行？
model:
  sets:
  QUARTERS/1,2,3,4/EM,RP,OP,INV;
  endsets
  min=@sum(QUARTERS:400*RP+450*OP+20*INV);
  @for(QUARTERS(i):RP(i)<40);
  @for(QUARTERS(i)|i#gt#1:
       INV(i)=INV(i-1)+RP(i)+OP(i)-DEM(i););
     INV(i)=10+RP(i)+OP(i)-DEM(i);
  data:
     DEM=40,60,75,25;
  enddata
end

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作者: zt1020306646    时间: 2012-8-31 22:47
上面发时有点错误
model:
  sets:
  QUARTERS/1,2,3,4/EM,RP,OP,INV;
  endsets
  min=@sum(QUARTERS:400*RP+450*OP+20*INV);
  @for(QUARTERS(i):RP(i)<40);
  @for(QUARTERS(i)|i#gt#1:
       INV(i)=INV(i-1)+RP(i)+OP(i)-DEM(i););
     INV(i)=10+RP(i)+OP(i)-DEM(i);
  data:
     DEM=40,60,75,25;
  enddata
end

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作者: hzs2012    时间: 2012-8-31 23:26

zt1020306646 发表于 2012-8-31 22:47
上面发时有点错误
model:
  sets:

最好把模型贴出来

我按着我的理解改了一下

1. model:
   
2.   sets:
   
3.   QUARTERS/1,2,3,4/:EM,RP,OP,INV,DEM;
   
4.   endsets
   
5. 
   
6.   data:
   
7.      DEM=40,60,75,25;
   
8.   enddata
   
9. 
   
10.   min=@sum(QUARTERS:400*RP+450*OP+20*INV);
    
11.   @for(QUARTERS(i):RP(i)<40);
    
12.   @for(QUARTERS(i)|i#gt#1:INV(i)=INV(i-1)+RP(i)+OP(i)-DEM(i););
    
13.   @for(QUARTERS(i):INV(i)=10+RP(i)+OP(i)-DEM(i););
    
14.   
    
15. end

复制代码

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作者: 且生    时间: 2012-9-1 05:48
不晓得是不是少了个for，

1. model:
   
2.    sets:
   
3.    QUARTERS/1,2,3,4/:DEM,RP,OP,INV;
   
4.    endsets
   
5.    min=@sum(QUARTERS:400*RP+450*OP+20*INV);
   
6.    @for(QUARTERS(i):RP(i)<40);
   
7.    @for(QUARTERS(i)|i#gt#1:
   
8.         INV(i)=INV(i-1)+RP(i)+OP(i)-DEM(i););
   
9.     @for(QUARTERS(i):  INV(i)=10+RP(i)+OP(i)-DEM(i));
   
10.    data:
    
11.       DEM=40,60,75,25;
    
12.    enddata
    
13. end

复制代码

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作者: 且生    时间: 2012-9-1 05:50
不晓得是不是少了个for，

1. model:
   
2.    sets:
   
3.    QUARTERS/1,2,3,4/:DEM,RP,OP,INV;
   
4.    endsets
   
5.    min=@sum(QUARTERS:400*RP+450*OP+20*INV);
   
6.    @for(QUARTERS(i):RP(i)<40);
   
7.    @for(QUARTERS(i)|i#gt#1:
   
8.         INV(i)=INV(i-1)+RP(i)+OP(i)-DEM(i););
   
9.     @for(QUARTERS(i):  INV(i)=10+RP(i)+OP(i)-DEM(i));
   
10.    data:
    
11.       DEM=40,60,75,25;
    
12.    enddata
    
13. end

复制代码

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