File:Grafico v.c. Birnbaum-Saunders.png
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editDescriptionGrafico v.c. Birnbaum-Saunders.png |
Italiano: *Autore: utente:Tomi
Codice Rpng(file="c:/temp/Grafico_v.c._Birnbaum-Saunders.png", width=900, height=800); BS <- function(x,a,b) { return( 1/sqrt(2*pi) * (sqrt(x/b)+sqrt(b/x))/(2*a*x)*exp(-((sqrt(x/b)-sqrt(b/x))^2/(2*a^2)))) } dx=0.001;x <- seq(dx,3,dx); alfas <- c(0.1,0.2,0.5,1,2,3,5); colori <- c("red","green","black","purple","navy","orange","darkgreen") ylim <- c(0,max(BS(x,min(alfas),1),BS(x,max(alfas),1))) plot(x,BS(x,1,1), main="v.c. di Birnbaum-Saunders", type='l', ylab=expression(f(x,alpha,beta==1)), ylim=ylim) i<-0;for (alfa in alfas) {i<-i+1;lines(x,BS(x,alfa,1),col=colori[i],lwd=1.2)} legenda <- legend(max(x)/2,max(ylim)*4/5,alfas,col=colori,lty=1,bty='n') text(legenda$rect$left+legenda$rect$w*2/3,max(ylim)*4/5,expression(alpha)) dev.off()
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Date | 3 November 2006 (original upload date) |
Source | Transferred from it.wikipedia to Commons. |
Author | The original uploader was Tomi at Italian Wikipedia. |
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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. Subject to disclaimers.http://www.gnu.org/copyleft/fdl.htmlGFDLGNU Free Documentation Licensetruetrue |
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editThe original description page was here. All following user names refer to it.wikipedia.
Date/Time | Dimensions | User | Comment |
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2006-11-03 15:03 | 900×800× (10096 bytes) | Tomi | *Autore: [[utente:Tomi]] *Contenuto: grafico della [[funzione di densità di probabilità]] della [[variabile casuale di Birnbaum-Saunders]] *Licenza: Gnu FDL *Note: grafico prodotto con script in [[R (software)|R]] |
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current | 10:50, 13 September 2017 | 900 × 800 (10 KB) | Pierpao (talk | contribs) | Transferred from it.wikipedia |
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