(50g) Normal Distribution

[John Keith]

(12-06-2018 11:08 PM)Dieter Wrote:  What is "2v"?

To get the Normal PDF for a distribution with mean µ and variance σ², normalize the variable x first by calculating (x–µ)/σ. Then apply the Standard Normal PDF Z(), and finally divide that value by σ.

In other words: simply calculate 1/σ · Z[(x–µ)/σ].

Dieter

By 2v I meant 2 * variance as in the formula I found in several references, and which was the basis of my program in the first post:

1/Sqrt(2*pi*v)*e^-((x-m)^2/(2*v))

(Please excuse my lack of MathJax ability.)

I did manage to figure out the algebra well enough to get Albert's 2-Exp method working properly with mean and variance. It is a big, slow beast of a program, though, and I will study your post carefully and hopefully come up with something better.

Thanks for your help,
John