Random function

[Ehsan]

Hi everyone . I want to make an array inside a struct and randomly generate initial states.

[sylwester]

Too vague for me. What dialect are you implementing this in and what have you tried so far?
A general hunch is that you need to create the array then traverse it using a random function to give each slot a value. The fact that the array is in a struct is not very relevant.

[nuntius]

If you are using defstruct, you will need to create a separate function to initialize the contents. If you are using defclass, then you can use "(defmethod initialize-instance :after" to do the initialization.