Hello, 

I recreated your use case with random numbers as follows. 

Now, to find maximum, minimum and average, I used these functions. 

And the results are:

p_min is 2. 

p_max is 99.

p_avg and p_mean are 53.

If you want the element inside t that has the minimum/maximum value, you need to use these functions:

Thank you for this.

Please which of the Identifiers did you use in picture 2 and 3. Do I have to create p_min, p_max, p_mean and p_avg as variables or parameter? You may kindly share the file to aid my understanding. I am new to AIMMS. Please note PW(t) is a variable that is obtained after running the model. 

Thank you once again.