File:Courbe survie locotracteurs Kaplan Meier.svg
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DescriptionCourbe survie locotracteurs Kaplan Meier.svg |
Français : Défaillance de locotracteurs : courbe de survie (fiabilité) R obtenue par la méthode de Kaplan-Meier.
Créé avec Scilab, modifié avec Inkscape.
English: Failure of shunters: survival curve (reliability) obtained with the Kaplan-Meier method.
Created with Scilab, modified with Inkscape. |
Date | |
Source | Own work |
Author | Cdang |
Other versions | Same data as File:Exemple fiabilite F R lambda.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. |
// Ce script nécessite le module Atoms CASCI
clear;
clf;
// paramètres de la loi de Weibull
beta_forme = 0.845;
eta_echelle = 126;
// génération des données
Y = linspace(0, 1, 30)
Y = Y(2:$-1);
t_orig = floor(idfweibull(Y, beta_forme, eta_echelle))';
t = [2, 5, 9, 13, 17, 22, 27, 39, 39, 39, 52, 64, 64, 76, 86, 97, 108, 121,...
135, 151, 169, 191, 215, 245, 282, 332]';
t_complet = [t ; 365 ; 365];
N0 = 28
// nombre cumulé
i = 1;
j = 1
n0 = 1;
nt = size(t, "*");
while i < nt
if t(i)<>t(i+1) then
D(j) = n0; n0 = 1;
tt(j) = t(i);
j = j + 1;
else
n0 = n0 + 1;
end
i = i+1;
end
D(j) = n0;
tt(j) = t(i);
ndn = j;
n(1) = D(1);
for i = 2:ndn
n(i) = n(i-1) + D(i); // systèmes défaillants sur l'intervalle
end
N = [N0 ; N0 - n(1:$-1)]; // systèmes en service en entrée d'intervalle
// Probabilités conditionnelles
P = D./N;
// Fiabilité
for i = 1:ndn
R(i)=prod(1-P(1:i));
end
// tracé
scf(0);
clf;
// plot(tt, R, "--")
plot2d2([0 ; tt], [1 ; R]);
xtitle("Courbe de survie par la méthode de Kaplan-Meier", "t (j)", "R")
Licensing[edit]
I, the copyright holder of this work, hereby publish it under the following license:
This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license.
- You are free:
- to share – to copy, distribute and transmit the work
- to remix – to adapt the work
- Under the following conditions:
- attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
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Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 13:31, 5 July 2013 | 503 × 398 (49 KB) | Cdang (talk | contribs) | +initial point (0;1) | |
12:41, 27 June 2013 | 503 × 398 (49 KB) | Cdang (talk | contribs) | User created page with UploadWizard |
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Short title | Défaillance de locotracteurs : analyse par la méthode de Kaplan-Meier |
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Width | 502.79593 |
Height | 397.79095 |