I'm trying to measure the output resistance of my analog block. I vary the output bias voltage a small amount and record the current for each value of the bias. I then calculate the output resistance as the inverse of the resulting current-voltage plot.

I would like to then vary the length of the transistors in my block and for each length, find the output resistance. So I currently have a corner set up that varies the length and bias voltage. However, the expression for calculating the output resistance attempts to evaluate at every point in the corner when I really need to evaluate over sections of constant length in the corner.

I can evaluate my expression using the EvalType=Sweep for a single length and this works correctly. However, if I include multiple corners, each with a different length, then the EvalType=Sweep attempts to evaluate the output resistance over all lengths, which is not correct at all.

So I'm wondering if it's possible to do this in the ADE Explorer Maestro view?