[R] thick plot lines

[Faheem Mitha]

Dear People,

In a qqplot I am doing, I get lines/points that are very thick. I've tried
setting the lwd variable to 0.1, but it doesn't seem to have any effect.
Also, I have set the value of lty to dashed, but I still get dots. The
command looks like

qqplot(cdf.inv(seq(0,1,length=size),theta,pos,len),empmargdistvec(len,theta,pos,size),
       xlim=c(-theta,theta), ylim=c(-theta,theta), lwd=0.1,
       xlab="Marginal Quartiles", ylab="Empirical Marginal", col="red", lty="dashed")

I tried putting

par(lty="dashed",lwd=0.1)

before this, but this doesn't have any effect either.

I'm now wondering if I am doing something wrong. Does qqplot perhaps not
accept these parameters? What should I do to make the lines/points
thinner?

                                              Faheem.