Originally posted by: Tilliminator

Hi,

I got problems in modelling an input-variable.

"The probability of regular transportation, given the assumption that in a hub-and-spoke network
at most one hub will fail under disruption situation, is computed as 1 -qk -qkm, where qkm is 0 if k = m and qm otherwise. "

Because every qk and qm got their own failure probability they will be grabbed out of the. data file as follows: float failureprob [PotentialHubs]= ...;  //where k and m are in the set of PotentialHubs. Can you tell me how to model this condition mentioned above? I tried the if/else constraints out of the user manual and did some Internet research without success... If  I forgot anything you need to understand the problem just let me know!

The objective function is attached.

Thanks for your help!