[R] plot(summary) within quantreg package

[rocchini at unisi.it]

Quantreg package allows to plot the summary of models derived by quantile
regression at different taus.
The plot shows the parameters variation by varying taus: intercept and
slope (for a linear model).
Together with these values even confidence intervals may be plotted, based
on the threshold given within the summary (e.g. alpha=0.01 equals 99% CI).
However the graphic even plots the mean of all the values as a red line
together with CI. I would like to remove such a useless information from
the graphic.

Here the main code:
model<- rq(y~x,data=dataset, tau = 0.8:10/10) # here is the model
model.summary<- summary(model)
plot(sfm) # this function plots the summary parameters together with a red
line I would like to remove

Any help appreciated

Duccio