R help - Nov 2010 - prob with legend in my plots!

Hi,

I have a problem with the appearance of legend in my plots. If I specify  the
legend positions in characters like "topright"..etc, it appears, if  i
specify it in terms of coordinates like "-1, 1" .. etc, it does not 
appear. Can anyone help me with this?

script - 
x.date <- as.Date(paste(year, month, day, sep="-"))
ts1.n.e3 <- ts(data.nemr.e3[,3])
z1.n.e3 <- zoo(ts1.n.e3, x.date)
plot(z1.n.e3, ylim = c(min(data.nemr.e3[,3]), max(data.nemr.e3[,5])),
col="orange",
main = "Monthly variations of SST in El-Nino3", xlab =
"Year", ylab="SST (deg C)")
lines(z2.n.e3, lty = 2, col="red2")
lines(z3.n.e3, lty = 3, col="maroon3", lwd=1)
legend(-0.1, -0.1, legend=c("min", "mean", "max"),
lty=c(1,2,3),
col=c("orange", "red2", "maroon3"))

attached is my plot!?suggestions are welcome! thanks in advance! -- 
Regards,
Maha!

On Nov 5, 2010, at 6:59 PM, govindas at msu.edu wrote:
> Hi,
>
> I have a problem with the appearance of legend in my plots. If I  
> specify  the legend positions in characters like "topright"..etc,
it
> appears, if  i specify it in terms of coordinates like "-1, 1" ..
> etc, it does not  appear.
Is -1, 1 a valid location in the range and domain of the arguments?
> Can anyone help me with this?
>
> script -
> x.date <- as.Date(paste(year, month, day, sep="-"))
> ts1.n.e3 <- ts(data.nemr.e3[,3])
> z1.n.e3 <- zoo(ts1.n.e3, x.date)
> plot(z1.n.e3, ylim = c(min(data.nemr.e3[,3]), max(data.nemr.e3[, 
> 5])), col="orange",
> main = "Monthly variations of SST in El-Nino3", xlab =
"Year",
> ylab="SST (deg C)")
> lines(z2.n.e3, lty = 2, col="red2")
> lines(z3.n.e3, lty = 3, col="maroon3", lwd=1)
> legend(-0.1, -0.1, legend=c("min", "mean",
"max"), lty=c(1,2,3),
> col=c("orange", "red2", "maroon3"))
>
> attached is my plot!
No, it's not. Neither is any data with which to reproduce the problem.  
Please read the Posting Guide more thoroughly.
>
-- 

David Winsemius, MD
West Hartford, CT