[R] making a plot

[Enrico Colosimo]

Dear all,

I am struggling to make a plot for my survival analysis
class.

This is my script


 labels<-c('1','2','3','4','5','6')
 ano<-c(2001,2002,2003,2004,2006,2008)
 ranges<-c(6,3,4,5,4,2)
 dotchart(ano, labels=labels, xlab='ano',
ylab='Pacientes',pch=20,xlim=c(min(ano),  max(ano+ranges)))
 segments(ano,1:6,ano+ranges,1:6,pch=25,lty=1,lend=4)

I need to put an asterix (failure) by the end of the three first lines and
a small circle (censoring)
by the end of the last three.

Someone can help me?

Thanks,
Enrico.

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