Defining a variable of mixed datatype in Mathprog

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Hi,

I have to formulate a problem in mathprog where a variable can be both
integer type and continuous type based on index.

Let me give an example to further illustrate this.

I have two sets of items:
set itemInteger;
set itemContinuous;

I need to define a variable, awardQuantity, on these sets so that for items
in the set itemInteger, it is of type Integer and for items in set
itemContinuous, it is of type continuous.

I know I can define two different variables:

var awardQuantityInt[i in itemInteger], integer;
var awardQuantityCont[i in itemContinuous];

But that is not what I am looking for.
I want a single variable handling both types.



I would really appreciate it if I can get some help on it. I have been
trying to find an answer to this for a few days now.

Thanks,
Anku

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<div dir=3D"ltr">Hi,<div dir=3D"auto"><br></div><div dir=3D"auto">I have to=
 formulate a problem in mathprog where a variable can be both integer type =
and continuous type based on index.</div><div dir=3D"auto"><br></div><div d=
ir=3D"auto">Let me give an example to further illustrate this.=C2=A0</div><=
div dir=3D"auto"><br></div><div dir=3D"auto">I have two sets of items:</div=
><div dir=3D"auto">set itemInteger;</div><div dir=3D"auto">set itemContinuo=
us;</div><div dir=3D"auto"><br></div><div dir=3D"auto">I need to define a v=
ariable, awardQuantity, on these sets so that for items in the set itemInte=
ger, it is of type Integer and for items in set itemContinuous, it is of ty=
pe continuous.=C2=A0</div><div dir=3D"auto"><br></div><div dir=3D"auto">I k=
now I can define two different variables:</div><div dir=3D"auto"><br></div>=
<div dir=3D"auto">var awardQuantityInt[i in itemInteger], integer;</div><di=
v dir=3D"auto">var awardQuantityCont[i in itemContinuous];<br></div><div di=
r=3D"auto"><br></div><div dir=3D"auto">But that is not what I am looking fo=
r.</div><div dir=3D"auto">I want a single variable handling both types.=C2=
=A0</div><div dir=3D"auto"><br></div><div dir=3D"auto"><br></div><div dir=
=3D"auto"><br></div><div dir=3D"auto">I would really appreciate it if I can=
 get some help on it. I have been trying to find an answer to this for a fe=
w days now.</div><div dir=3D"auto"><br></div><div dir=3D"auto">Thanks,</div=
><div dir=3D"auto">Anku</div><div><div dir=3D"ltr" data-smartmail=3D"gmail_=
signature"><div dir=3D"ltr"><div><div dir=3D"ltr"><div><div dir=3D"ltr"><di=
v dir=3D"ltr"><div><br></div><div><br><br></div></div></div></div></div></d=
iv></div></div></div>
</div>

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