Setcomps

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Establishes or redefines control variables so they contain the components of a period delimited string.

 

$setcomps perioddelimstring v1 v2 v3 ….

 

where perioddelimstring is any period delimited string like the set specification of a multidimensional parameter

v1is the name of a control variable that will contain the name of the set element in the first position
v2is the name of a control variable that will contain the name of the set element in the second position
v3is the name of a control variable that will contain the name of the set element in the third position

 

Thus (condcomp.gms)

 

$setcomps s1.s2.s3 sel1 sel2 sel3

 

separates the string s1.s2.s3 into its three components placing s1 into sel1, s2 into sel2 and s3 into sel3.

The three items may be recombined back into the original filename string by using %v1%.%v2%.%v3% in a command like (condcomp.gms)

 

$setglobal nam1 %sel1%.%sel2%.%sel3%

 

In turn one can do conditional processing as illustrated below

 

scalar count /0/;

set sels /s1*s3/;

loop(sels,count=count+1;

   if(sameas(sels,"%sel2%"),display "found element %sel2% in position",count;);

     );