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<div class="moz-cite-prefix">Hello Richard,<br>
<br>
here some additional remarks to your questions:<br>
<br>
3) You have defined the regions as sets, and the ports as arrays.
In such a setup you should define the routes over the regions. For
all routes this is simple:<br>
<br>
routes := [producing_regions, consuming_regions];<br>
<br>
You can check the routes with:<br>
<br>
{ r in routes: echo r; }<br>
<br>
If you prefer to define the routes over the ports, then you should
define the ports also as sets. You can make sets from your arrays
by:<br>
<br>
export_ports_set := set{ r in producing_regions:
export_ports[r] };<br>
import_ports_set := set{ r in consuming_regions:
import_ports[r] };<br>
<br>
Then you can define the routes with:<br>
<br>
routes := [export_ports_set, import_ports_set];<br>
<br>
4) You have already defined the ports as arrays over the regions,
so you can make the lookup within this array. You don't need the
set producing_regions_export_ports_correspondence:<br>
<br>
echo export_ports["Midwest"];<br>
<br>
will produce the output "NewOrleans".<br>
<br>
Thomas Schleiff<br>
<br>
<br>
<br>
Am 09.10.2017 um 11:57 schrieb Mike Steglich:<br>
</div>
<blockquote type="cite"
cite="mid:B6A604B1-52E2-43A8-B751-B328B1561829@th-wildau.de">
<div>Hello Richard,</div>
<div><br>
</div>
<div>I aplolgise for the delayed answer. It is the beginning of
the new winter semester ...</div>
<div><br>
</div>
<div>Please see my answers below:</div>
<div><br>
Am 06.10.2017 um 21:46 schrieb Richard Males <<a
href="mailto:males@iac.net" moz-do-not-send="true">males@iac.net</a>>:<br>
<br>
</div>
<blockquote type="cite">
<div>
<p>Thank you for the availability of CMPL and the COIN-OR
project.</p>
<p>I am trying to learn the language by developing a model of
port to port ocean transport with a relatively small set of
ports (3 export serving 3 producing regions, 7 import
serving 7 consuming regions) eventually leading to a larger
and more complex situation. I come from a programming
language background. I am using Coliop4. <br>
</p>
<p>Any suggestions/advice much appreciated.<br>
</p>
<p>1) I have not found any tutorial information for beginners,
only the documentation. Is there anything like that
available?</p>
</div>
</blockquote>
<div>Unfortunatly, not yet. There are additional CMPL sample files
in the SolverStudio package that could help .... -> <a
href="https://urldefense.proofpoint.com/v2/url?u=http-3A__SolverStudio.org&d=DwMCaQ&c=Ngd-ta5yRYsqeUsEDgxhcqsYYY1Xs5ogLxWPA_2Wlc4&r=bC-ot6cnDq3NJprIa2U54ZW0PXGvQSMdgN_s4GhXuu8&m=K-b1Y0toMDzL8qrD8mEkzPTJ9n5T6EAve5pAhb8Z8VE&s=gsdW7T_rbOwOwLPjedmbZW4IcaN_4SEM1ulJ3xk25So&e="
moz-do-not-send="true">SolverStudio.org</a></div>
<br>
<blockquote type="cite">
<div>
<p>2) Is there a search function for the mailing list archive?<br>
</p>
</div>
</blockquote>
<div>Unfortunately ... no </div>
<br>
<blockquote type="cite">
<div>
<p> </p>
<p>3) I have sets for producing and consuming regions and
import and export ports (see below). <br>
</p>
producing_regions := set
("SouthAmerica","Midwest","PacificNorthwest");<br>
export_ports[producing_regions] :=
("Santos","NewOrleans","Seattle"); <br>
consuming_regions := set("China", "Europe", "Mexico", "Japan",
"SoutheastAsia","FSU-MiddleEast","Korea");<br>
import_ports[consuming_regions] := ("ChinaIP", "EuropeIP",
"MexicoIP", "JapanIP",
"SoutheastAsiaIP","FSU-MiddleEastIP","KoreaIP");
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px;
margin-right:0px; -qt-block-indent:0; text-indent:0px;
-qt-user-state:0;"><br>
</p>
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px;
margin-right:0px; -qt-block-indent:0; text-indent:0px;
-qt-user-state:0;">I am interested in developing the set of
routes between all possible port pairs without having to
directly enumerate it, so that I could reference
route("Santos","ChinaIP") for the specifics of a particular
route. Is there an easy way of doing this within CMPL? I
did it manually, as follows:</p>
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px;
margin-right:0px; -qt-block-indent:0; text-indent:0px;
-qt-user-state:0;"><br>
</p>
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px;
margin-right:0px; -qt-block-indent:0; text-indent:0px;
-qt-user-state:0;">routes := set(
["Santos","ChinaIP"],["NewOrleans","ChinaIP"],["Seattle","ChinaIP"],</p>
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px;
margin-right:0px; -qt-block-indent:0; text-indent:0px;
-qt-user-state:0;">
["Santos","EuropeIP"],["NewOrleans","EuropeIP"],["Seattle","EuropeIP"],</p>
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px;
margin-right:0px; -qt-block-indent:0; text-indent:0px;
-qt-user-state:0;">
["Santos","MexicoIP"],["NewOrleans","MexicoIP"],["Seattle","MexicoIP"],</p>
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px;
margin-right:0px; -qt-block-indent:0; text-indent:0px;
-qt-user-state:0;">
["Santos","JapanIP"],["NewOrleans","JapanIP"],["Seattle","JapanIP"],</p>
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px;
margin-right:0px; -qt-block-indent:0; text-indent:0px;
-qt-user-state:0;">
["Santos","SoutheastAsiaIP"],["NewOrleans","SoutheastAsiaIP"],["Seattle","SoutheastAsiaIP"],</p>
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px;
margin-right:0px; -qt-block-indent:0; text-indent:0px;
-qt-user-state:0;">
["Santos","FSU-MiddleEastIP"],["NewOrleans","FSU-MiddleEastIP"],["Seattle","FSU-MiddleEastIP"],</p>
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px;
margin-right:0px; -qt-block-indent:0; text-indent:0px;
-qt-user-state:0;">
["Santos","KoreaIP"],["NewOrleans","KoreaIP"],["Seattle","KoreaIP"]);</p>
</div>
</blockquote>
<div><br>
</div>
<div>It is not possible to do that directly at the moment. I do
that usually in Excel using SolverStudio/Cmpl.</div>
<br>
<blockquote type="cite">
<div>
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px;
margin-right:0px; -qt-block-indent:0; text-indent:0px;
-qt-user-state:0;"><br>
</p>
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px;
margin-right:0px; -qt-block-indent:0; text-indent:0px;
-qt-user-state:0;">4) I am also looking for the best way to
formulate a lookup situation. In this case, given the
region, I wish to know the port. I have created a
correspondence parameter with 2-tuples, as follows <br>
</p>
<p style="-qt-paragraph-type:empty; margin-top:0px;
margin-bottom:0px; margin-left:0px; margin-right:0px;
-qt-block-indent:0; text-indent:0px;"><br>
</p>
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px;
margin-right:0px; -qt-block-indent:0; text-indent:0px;
-qt-user-state:0;">producing_regions_export_ports_correspondence:=set(["SouthAmerica","Santos"],["Midwest","NewOrleans"],["PacificNorthWest","Seattle"]);</p>
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px;
margin-right:0px; -qt-block-indent:0; text-indent:0px;
-qt-user-state:0;"><br>
</p>
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px;
margin-right:0px; -qt-block-indent:0; text-indent:0px;
-qt-user-state:0;">and I would like to be able, given
"Midwest", to return "NewOrleans". I can iterate over the
set to find the value, e.g.:</p>
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px;
margin-right:0px; -qt-block-indent:0; text-indent:0px;
-qt-user-state:0;"># below finds correspondence by looping
through all</p>
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px;
margin-right:0px; -qt-block-indent:0; text-indent:0px;
-qt-user-state:0;">{ [i,j] in
producing_regions_export_ports_correspondence:</p>
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px;
margin-right:0px; -qt-block-indent:0; text-indent:0px;
-qt-user-state:0;">{i="Midwest": echo j;}</p>
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px;
margin-right:0px; -qt-block-indent:0; text-indent:0px;
-qt-user-state:0;">}</p>
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px;
margin-right:0px; -qt-block-indent:0; text-indent:0px;
-qt-user-state:0;">but I am hoping there is a more direct
way of doing this.</p>
</div>
</blockquote>
<div><br>
</div>
<div>I would it also formulate as you did it. </div>
<br>
<blockquote type="cite">
<div>
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px;
margin-right:0px; -qt-block-indent:0; text-indent:0px;
-qt-user-state:0;"><br>
</p>
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px;
margin-right:0px; -qt-block-indent:0; text-indent:0px;
-qt-user-state:0;">Thank you in advance.<br>
</p>
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px;
margin-right:0px; -qt-block-indent:0; text-indent:0px;
-qt-user-state:0;"><br>
</p>
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px;
margin-right:0px; -qt-block-indent:0; text-indent:0px;
-qt-user-state:0;">Dick Males<br>
</p>
</div>
</blockquote>
<div><br>
</div>
<div><br>
</div>
<div>Thanks,</div>
<div><br>
</div>
<div>Mike</div>
<br>
<blockquote type="cite">
<div>
<p style=" margin-top:0px; margin-bottom:0px; margin-left:0px;
margin-right:0px; -qt-block-indent:0; text-indent:0px;
-qt-user-state:0;"> </p>
<pre class="moz-signature" cols="72">--
Richard M. Males
3319 Eastside Avenue
Cincinnati, OH 45208
USA
</pre>
</div>
</blockquote>
<blockquote type="cite">
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