How to create a legend with marker size as f(z)?

Hi,

I have created a graph that uses color and marker size as f(z), and I want to create two legend for that. But there is a color as f(z) legend in annotations only. Who can tell me how to create a legend with marker size as f(z)?

Thanks for any help!
A bit manual, but one approach.

Create a legend and then insert the relevant wave marker several times perhaps with a return between them. Then use can use the relative size function to scale the size of the marker. I found that you probably want to insert a normal text size command ,"\M"

cheesy example:
\Z18\s(fred) fred
\Zr025\s(fred) \M 25%
\Zr050\s(fred) \M 50%
\Zr075\s(fred) \M 75%

Andy