find the time t when maximum value of a variable occurs

[Nieves]

In a panel data defined by id x and time t, I have found the maximum value of variable y (max y) and maximum value of variable z (max z) within each group of id x.

How to Compare the maximum value of y and maximum value of z, create a varialbe that equals the maximum (max y,max z) and identify the time when the maximum value of y and z appears respectively? 

I'm using SAS 9.4

[Nieves]

In a panel data defined by id x and time t, I have found the maximum value of variable y (max y) and maximum value of variable z (max z) within each group of id x.

How to Compare the maximum value of y and maximum value of z, create a varialbe that equals the maximum (max y,max z) and identify the time when the maximum value of y and z appears respectively? 

I'm using SAS 9.4

[Kurt_Bremser]

Follow my advice given in https://communities.sas.com/t5/General-SAS-Programming/find-the-maximum-value-of-variables-y-and-z-a...