Posted by Jerry Crick on October 20, 2002 at 13:19:43:
Hi - can anyone help?
I am looking for a formula that will calculate values for a curve whose end points defined by a and b would typically be the values 0 to 1 and 1 to 4 repectively - these to be chosen by the user and represent the x axis. In my example these have been multiplied by a cost estimate.
The y access will run between 0 and 100 representing the probability. The probability of 0 must occur where x = 1, 400 in my example since my cost estimate is 400.
In addition to this I need to be able to alter the shape of the curve using a single value. This would represent a level of confidence where very confident leads to a very narrow and spiky curve and not confident leads to a flatter less spiky curve.
Well that's the description. I have placed an image of the resultant graph I would like to see in the link below. This one just used a log scale to get an approximation!
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