Hi,

I have some trouble implementing part of my model:

1) I have this definition of my parameter k
I tried this but it doesn't work (the icdf function is imported)

k(alpha(m)) =e= icdf(alpha(m), 0,1);

2) If have a constraint that is defined for all m in {1,…M-1}. How could I do that?
The relevant Sets/Parameters/Variables are:

Thanks for any help!

## Problem implementing a Model

### Re: Problem implementing a Model

Hi Lizzy

One trick to have an equation only for the M-1 elements is by using the cardinal of a set (the number of elements): card(m) and the order:
With respect to your second question: A variable is defined over a set, e.g. X(i), but can't be defined over a variable itself like you do X(Y).

Correct, but I don't know if this is what you are looking for, is:
Cheers

Renger

One trick to have an equation only for the M-1 elements is by using the cardinal of a set (the number of elements): card(m) and the order:

Code: Select all

```
myconstraint(m$(ord(m) ne card(m))..
```

Correct, but I don't know if this is what you are looking for, is:

Code: Select all

```
k(m) =e= icdf(alpha(m), 0,1);
```

Renger

### Re: Problem implementing a Model

Hello,

thanks a lot for the response.

Regarding the first question I'm sorry, I uploaded the wrong picture. So here is the right one: So this is not possible?

I think I have the same problem regarding this constraint:

So there is no chance to implement constraints like this?

Best regards

thanks a lot for the response.

Regarding the first question I'm sorry, I uploaded the wrong picture. So here is the right one: So this is not possible?

I think I have the same problem regarding this constraint:

So there is no chance to implement constraints like this?

Best regards