Q Function

The Q Function implemented as integegraion of density function.
Updated 28 Jun 2005

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This function computes the Q function by integrating the Normal distribution.

It takes one paramter and calculates the right tail probablity.
Ex. x=q(0)
x would have the value of .5

For an arbitrary Gaussian distribution with mean, mu, and variance, sigma^2, then the function is passed this form.

Ex. Say you have a distribution of G(3,4). mu = 3, and sigma = 2. You want to calculate the right tail probability that it will be greater than 3.5. The function call would look like

This is not the most efficient way of calculating this. I wrote this because I didn't have the proper toolbox. If you have the toolbox its just QFunc.

Cite As

Timothy Felty (2024). Q Function (https://www.mathworks.com/matlabcentral/fileexchange/7920-q-function), MATLAB Central File Exchange. Retrieved .

MATLAB Release Compatibility
Created with R13
Compatible with any release
Platform Compatibility
Windows macOS Linux
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