[SCIP] reading in indexed sets with ZIMPL

[James Cussens]

I am having trouble reading in indexed sets with ZIMPL. The following ZIMPL
input:

STARTS
set Q := { <"ab",1,2>, <"bc",2,3>, <"de",4,5> };

#set cost[Q] := { read "haha.txt" as "<3s,1n,2n> 4s" };
param cost[Q] :=  read "haha.txt" as "<3s,1n,2n> 4s" ;
ENDS

works fine with these 3 lines in haha.txt:

1:2:ab:con1
2:3:bc:con2
4:5:de:con3

So all is well with an indexed parameter. But when I uncomment the set
definition line (and comment out the param one) I get:


****************************************************
* Zuse Institute Mathematical Programming Language *
* Release 3.3.3 Copyright (C)2012 by Thorsten Koch *
****************************************************
*   This is free software and you are welcome to   *
*     redistribute it under certain conditions     *
*      ZIMPL comes with ABSOLUTELY NO WARRANTY     *
****************************************************

Reading test.zpl
Reading haha.txt
*** Error 214: Wrong type of set elements -- wrong read template?
*** File: test.zpl Line 3
*** set cost[Q] := { read "haha.txt" as "<3s,1n,2n> 4s" };
***                                                     ^^^

I notice that none of the examples in the ZIMPL manual involve reading in
indexed sets.

Any help gratefully received!

James

-- 
James Cussens
Dept of Computer Science &
York Centre for Complex Systems Analysis
Room 326, The Hub, Deramore Lane            Tel    +44 (0)1904 325371
University of York                                        Fax  +44 (0)1904
500159
York YO10 5GE, UK                               http://www.cs.york.ac.uk/~jc
http://www.york.ac.uk/docs/disclaimer/email.htm
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