File:Lissage sinus bruite moyenne glissante.svg
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Original file (SVG file, nominally 487 × 362 pixels, file size: 35 KB)
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This is a file from the Wikimedia Commons |
Summary
| Description |
English: Smoothing of a noisy sine (blue curve) with a moving average (red curve, 10 points interval).
Français : lissage d'un sinus bruité avec la méthode de la moyenne glissante (intervalle de 10 points). |
| Date | |
| Source | Own work |
| Author | Christophe Dang Ngoc Chan (Cdang (talk)) |
| Other versions | same data with cubic Hermite spline smoothing: File:Lissage sinus bruite spline cubique.svg |
Scilab source
 |
This media was created with Scilab, a free open-source software. Here is a listing of the Scilab source used to create this file. |
// ***** Génération des données *****
m = 200; // nombre de points mesurés
bruit = 0.2; // amplitude du bruit
x = linspace(0, 2*%pi, m);
y = sin(x) + 0.2*rand(x, "normal"); // valeurs bruitées
// ***** Lissage *****
p = 10; // largeur de l'intervalle
h = 1/p*ones(1, p); // fonction porte pour le lissage
yliss = conv(h, y); // calcul des valeurs lissées
// ***** Tracé *****
plot(x, y) // données originales
plot(x, yliss(1+p/2:$-p/2+1), "r") // données lissées
Licensing
I, the copyright holder of this work, hereby publish it under the following licenses:
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Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License. |
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File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 08:40, 26 March 2014 | | 487 × 362 (35 KB) | Cdang | {{Information |Description={{en|1=Smoothing of a noisy sine with the method of moving averages (10 points interval).}} {{fr|1=lissage d'un sinus bruité avec la méthode de la moyenne glissante (intervalle de 10 points).}} |Source={{own}} |Date=2014-03... |
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