[R] line length in legend

[Giovanni Petris]

Hello,

Is it possible to set the length of the lines appearing in a
legend? For example, with

> plot(window(EuStockMarkets, end = 1992), plot.type = "s", lty = c("13", "6413", "431313", "B4"))
> legend(1991.7, 2200, legend = colnames(EuStockMarkets), lty = c("13", "6413", "431313", "B4"))

I end up with a legend in which the "dot-dash" patterns of the
different line types are hard to distinguish. With a longer piece of
line that would be easier.

Thank you in advance,
Giovanni

-- 

Giovanni Petris  <GPetris at uark.edu>
Associate Professor
Department of Mathematical Sciences
University of Arkansas - Fayetteville, AR 72701
Ph: (479) 575-6324, 575-8630 (fax)
http://definetti.uark.edu/~gpetris/