defining a subset

[Archiver]

Dear All

I have a number of node from n=1 to n=296 out of which the first 90 must be flagged as zones in a subset called "Dest"
below is part of the code,
theere is an error at the last command and i cant figure it out.
Any idea is highly appreciated,

Thanks Saeed

SET n node /1*296/;
ALIAS (z,n)
SET Dest(z) zones;

.
.
.

Dest(z)$(z le 90)=yes;

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[Archiver]

Hi Saeed



All set elements are treated as characters, not as numbers, so you have to use the function ord, e.g.

Dest(z)$(ord(z) le 90) = YES;



Cheers

Renger



From: gamsworld@googlegroups.com [mailto:gamsworld@googlegroups.com] On Behalf Of Saeed Asadi
Sent: Freitag, 4. März 2016 06:03
To: gamsworld
Subject: defining a subset



Dear All



I have a number of node from n=1 to n=296 out of which the first 90 must be flagged as zones in a subset called "Dest"

below is part of the code,

theere is an error at the last command and i cant figure it out.

Any idea is highly appreciated,



Thanks Saeed



SET n node /1*296/;

ALIAS (z,n)

SET Dest(z) zones;



.

.

.



Dest(z)$(z le 90)=yes;

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