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File:PoissonCDF.png

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Description Generated with the following R [r-project.org] code: 
bitmap(file="PoissonCDF.png",type="png256",width=4,height=3,res=300,pointsize=12)
par(mar=c(3,3,1,1))


lambda <- c(4,1,10)
cols <- c("green","red","black")
plot(c(0,20),c(0,1),type="n")
for(x in 20:0) {
  for(i in 1:3) {
    lines(c(x,x+1),rep(ppois(x,lambda[i]),2),col=cols[i])
    points(x,ppois(x-1,lambda[i]),col="white",pch=19)
    points(x,ppois(x-1,lambda[i]),col=cols[i],pch=21)
    points(x,ppois(x,lambda[i]),col=cols[i],pch=19)
  }
}
legend(12,0.5,legend=c(expression (lambda==1),expression (lambda==4),expression (lambda==10)),col=c("red","green","black"),lwd=3,bty="n")
dev.off()
Date 2006-06-01 (first version); 2006-06-02 (last version)
Source Originally from en.wikipedia; description page is/was here.
Author Original uploader was Pdbailey at en.wikipedia
Permission
( Reusing this file)

GPL; Released under the GNU Free Documentation License.

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Subject to disclaimers.
w:en:Creative Commons
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This licensing tag was added to this file as part of the GFDL licensing update.
GNU head This work is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or any later version. This work is distributed in the hope that it will be useful, but without any warranty; without even the implied warranty of merchantability or fitness for a particular purpose. See version 2 and version 3 of the GNU General Public License for more details.
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