Objective function (including log functions) with optimal solution is not equal to cvx_optval

[Mark_L_Stone]

@kwssh You are not having the same problem as in this thread. Your problem has CVX expressions in the objective function, whereas the objective function in this topic only involves CVX variables. My answers in your other thread address the phenomenon you are actually encountering.

I wonder why the cvx_optval value is different from the object value obtained through W and R obtained through CVX even though cvx_status is solved

What exactly is your remaining difficulty? As I wrote above, you should not rely on the value of any CVX expression after cvx_end. Only CVX variables are “guaranteed” (presuming the problem is solved to optimality) to be populated with their optimal values after cvx_ehd. CVX correctly solves the optimal problem, but does not necessarily correctly report the optimal values of CVX expressions; and the values those expressions do have may be inconsistent with each other (as well as with CVX optima…