Inverse a non-linear linspace

Hi,

I have the following code to get a normally distributed vector of 15 points between -20 and 20:

    x_coor = linspace(-1,1,15);
    mu = 0;
    sigma = 0.5;
    x = normcdf(x_coor, mu, sigma) ;
    x = x * 40;
    x = x - 20;

the output is as following:

Columns 1 through 11
-19.0900  -18.2705  -16.9375  -14.9380  -12.1727   -8.6458   -4.4981         0    4.4981    8.6458   12.1727

Columns 12 through 15

   14.9380   16.9375   18.2705   19.0900

how can i invert this such that it would be something like:

-19.09 14 10 8 6 ...

so that it has more values around 0 rather than around plusminus 20?

[ANKUR KUMAR]

What exactly you wish to do. Tell us in detail might helps you to get the required answer. Tell us what you are expecting the answer clearly.

[Adam Danz]

I agree, your goal is very unclear. Plotting x as a function of x_coor reveals a sigmoidal curve. Maybe you could describe how you'd like that sigmoid to change.