[R] title problem with postscript()

[Giovanni Petris]

My problem is that with the following commands
I get the title of the plot printed within the plotting region. 
(everything works fine with x11()). Any suggestions?

Thanks in advance,
Giovanni


> postscript(file="Neyman-Scott.ps")
> plot(cardiff$poly, asp=1, type="n")
> pointmap(sim.events, add=T)
> polymap(cardiff$poly, add=T)
> title(substitute(list("Simulated Neyman-Scott Process", sigma^2==s2, rho==r),
+                  list(s2=round(exp(fit$par[1]),2), r=round(exp(fit$par[2]),3))))
> dev.off()

-- 

 __________________________________________________
[                                                  ]
[ Giovanni Petris                 GPetris at uark.edu ]
[ Department of Mathematical Sciences              ]
[ University of Arkansas - Fayetteville, AR 72701  ]
[ Ph: (501) 575-6324, 575-8630 (fax)               ]
[ http://definetti.uark.edu/~gpetris/              ]
[__________________________________________________]

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