[R] Plot frame border to start at zero?

jim holtman jholtman at gmail.com
Wed Jan 20 04:47:55 CET 2010


plot(..., xaxs='i', yaxs='i')

On Tue, Jan 19, 2010 at 7:42 PM, Douglas M. Hultstrand
<dmhultst at metstat.com> wrote:
> Hello,
>
> I am creating plots of hourly precipitation and accumulated precipitation
> (on different axis, see attached image). I was wondering how can I have the
> plot frame (black border) start at zero, it looks like it is plotted less
> than zero?
> The code I use to create the png files is below:
>
> CairoPNG(PNG_file,width=1000, height=600, pointsize=14, bg="white")
>       opar <- par(mai = c(.8, .8, 1, .8))    # Set margins
>       plot(ppt,type="h",col="dark grey",ylim=c(0,max_ppt+1), lwd=6, xlab='',
> ylab='', main=title, frame.plot=T, axes=F)
>       axis(2, col="black", las=2)
>       par(new=T) # R to overwrite the first plot
>       plot(accum, type="l", col="blue", axes=F, ylab='', xlab='', lwd=2)
>       axis(1, col="black", las=1)
>       axis(4, pretty(c(0, max_accum) ), col="black", las=2)
>       legend("topleft", legend=c('Incremental', 'Accumulated'),  col=c("dark
> grey", "blue"), lwd=c(6, 2.0))
>       legend((length(n)-4),max_accum, legend=paste(round(max_accum,2)),
> bty="n", cex=.90)     ### max accum location
>       mtext(paste("Lat:", .lat, "Lon:", .lon), cex=0.95)
>       mtext("Index Hour", side=1, line=2)
>       mtext("Incremental Precipitation (in)", side=2, line=2.5)
>       mtext("Accumulated Precipitation (in)", side=4, line=2)
> dev.off()
>
>
> Thanks for all your help,
> Doug
>
> ---------------------------------
> Douglas M. Hultstrand, MS
> Senior Hydrometeorologist
> Metstat, Inc. Windsor, Colorado
> voice: 970.686.1253
> email: dmhultst at metstat.com
> web: http://www.metstat.com
> ---------------------------------
>
>
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> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>
>



-- 
Jim Holtman
Cincinnati, OH
+1 513 646 9390

What is the problem that you are trying to solve?



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