@whuber Thank you @whuber!

@whuber Do you have any time to spare today?

@Mr.Wizard Not much, but I could answer a quick question.

@whuber Okay, thanks. I wonder if what I did is what you meant the other day. One moment.

@whuber I have this:

Am I doing this right or has it gone horribly wrong as I feared. :^)

Data used:

{
 {2360, 0, 0},
 {1700, 0, 3},
 {1400, 20, 32},
 {1180, 66, 84},
 {1000, 96, 100}
}

A closer view:

@whuber well I guess I'll see you later...

@Mr.Wizard Yes, that looks close to what I had sketched by hand during our previous conversation. If you draw it upside-down (by subtracting all the y values from 100) you will get a p-box.

@whuber Okay, thanks again. I'll formulate a proper Question and post it soon.