Hi

 I am trying to plot two simple graphs with a grid in background. The axis
and grid appears in correct position, but the actual data are not there....
 Can somebody provide me a hint what is missing?

 The code is:

pln <- read.table(file="PLN.txt", header=TRUE, dec=",")
par(mfrow=c(1,2))
plot(pln[,1], type="l", lwd="2", ylab="EUR/PLN", xlab=NULL, xlim = c(1993,
2011), ylim = c(2, 5),  panel.first = grid(nx=NULL, ny=NULL))
plot(log(pln[,1]), type="l", ylab="EUR/PLN", xlab=NULL, xlim = c(1993,
2011), panel.first = grid(equilogs = FALSE))

 Cheers.
 Sara

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