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Class: Probability distribution

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  Classes of Michele Andreoli  >  Probability distribution  >  Download .tar.gz .zip  >  Support forum Support forum (1)  >  Blog Blog  >  RSS 1.0 feed RSS 2.0 feed Latest changes  
Name: Probability distribution
Support forum Support forum
Base name: prob_distribution
Description: Create noise with Gaussian or Poisson distribution
Related classes: , , , , , , ,
Version: 0.1
PHP version: 5.0
License: GNU General Public License (GPL)
All time users: 201 users
All time rank: 6077
Week users: 0 users
Week rank: 1772
Picture of Michele Andreoli
Author: Michele Andreoli is available for providing paid consulting. Contact Michele Andreoli .
Packages: 6 Browse this author's classes Browse this author's classes
Country: Italy Italy - PHP jobs in Italy
Age: 26
All time rank: 94837 in Italy Italy
Week rank: 251 Up9 in Italy Italy Up
Innovation award
Innovation award
Nominee: 3x


  Detailed description  
This package can be used to create noise with certain probability distributions.

It can generate sets of values with different with either uniform, Gaussian or Poisson distribution.

It can also apply the generated values at an input signal in input to simulate a noise.

An additional filter class can be used to recover the original by first applying a Fast Fourier Transform, the use high-pass or low-pass before recovering the signal using the reverse Fast Fourier Transform.

 

  Groups  
Group folder image PHP 5 Classes using PHP 5 specific features View top rated classes
Group folder image Statistics Collecting, processing and reporting statistical data View top rated classes
Group folder image Audio Voice and music data generation and manipulation View top rated classes

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  Innovation Award  
PHP Programming Innovation award nominee
August 2010
Number 5
 Statistical distributions can be used to generate sets of values useful for many purposes.

This class can use several types of statistical distributions to generate sample values that simulate for instance audio noise.

Additionally it implements frequency based filters to simulate the removal of noise from audio samples.

Manuel Lemos

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  Packages needed by this class  
Class Dependency Why it is needed
Fast Fourier Transform
Required
 To perform the Fast Fourier Transform and applying the filters at the signal

  Applications that use this class  
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  Files folder image Files  
File Role Description
Plain text file Filter Class Class for filtering
Plain text file Index Example Example of use
Plain text file Noise Class Class for the probability distribution

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