File:Lissage sinus bruite spline cubique.svg
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Size of this PNG preview of this SVG file: 487 × 362 pixels. Other resolutions: 320 × 238 pixels | 640 × 476 pixels | 1,024 × 761 pixels | 1,280 × 951 pixels | 2,560 × 1,903 pixels.
Original file (SVG file, nominally 487 × 362 pixels, file size: 38 KB)
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Summary
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| Description |
English: Noisy sine function smoothed by a cubic Hermite spline.
Français : Fonction sinus bruitée lissée par une spline cubique de Hermite. |
| Date | |
| Source | Own work |
| Author | Christophe Dang Ngoc Chan (Cdang) |
| Other versions | same data with moving averages smoothing: File:Lissage sinus bruite moyenne glissante.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
// ***** Détermination de la spline *****
n = 6; // nombre de points de contrôle de la spline
xs = linspace(x(1), x($), n); // abscisse des points de contrôle
// répartition uniforme
[ys, d] = lsq_splin(x, y, xs); // détermination de la spline
// ***** Calcul des valeurs lissées de y *****
yliss = interp(x, xs, ys, d); // calcul des données lissées
// ***** Tracé *****
plot(x, y) // données originales
plot(x, yliss, "r") // données lissées
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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. |
This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported, 2.5 Generic, 2.0 Generic and 1.0 Generic license.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 08:19, 26 March 2014 | | 487 × 362 (38 KB) | Cdang (talk | contribs) | {{Information |Description={{en|1=Noisy sine function smoothed by a cubic Hermite spline.}} {{fr|1=Fonction sinus bruitée lissée par une ''spline'' cubique de Hermite.}} |Source={{own}} |Date=2014-03-26 |Author= Christophe Dang Ngoc Chan (~~~) |othe... |
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