R-Masters,

I need to produce high resolution line plots, with two or more plots 
per page. The commands I'm using cause the tick labels to appear on 
the x-axis line itself rather than below it. And the tick marks are 
so tiny they are invisible. These commands produce the problem on my 
PC:

png("trial.png", width=3000, height=4800, res = 600 ) # width & 
height purposely set for 5 x 8 inches

par(ann=F, font.main=2, font.lab=2, font.axis=1,
     cex=1, cex.main=7, cex.lab=7, cex.axis=7,
     lwd=12, las=1, mai=c(6, 6, 5, 3) )

x = seq(-2.5, 2.5, length=100)

split.screen(c(2,1))
screen(1)
plot(x,sin(x),type="l",xlim=c(-3,3))
title(main="Plot 1",xlab="x",ylab="y",line=16)
screen(2)
plot(x,cos(x),type="l",xlim=c(-3,3))
title(main="Plot 2",xlab="x",ylab="y",line=16)

close.screen(all = TRUE)
dev.off()


If cex.axis is lowered to 1, the problem disappears, but the tick and 
tick labels are way too small. I've spent a lot of time struggling 
with this, but can't find a way out.

Thanks for your time.

-- 
Brian O'Connor
Ontario, Canada

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