R help - Apr 2010 - One question about saving graph by using xyplot

Hey, folk.

I am trying to get many figures by using the function "xyplot" in the
library "lattice". I tried to using the loop to finish it quickly. But
I cannot open the saved file after I run the program. But if I use the function
"plot" to get other simply figures, it can work. So I want to ask how
I can get the saved figures by using "xyplot".

The following is a simple example about my program:
library(lattice)
require(stats)
## Tonga Trench Earthquakes
Depth <- equal.count(quakes$depth, number=8, overlap=.1)
for (i in 1:5) {
filename=paste("fig",i,".pdf",sep="")
pdf(filename,width=6.5,height=4.5)
xyplot(lat ~ long | Depth, data = quakes)
graphics.off()
}
# I cannot open the pdf files.

Buf if I try:
for (i in 1:5) {
filename=paste("fig",i,".pdf",sep="")
pdf(filename,width=6.5,height=4.5)
plot(lat ~ long, data = quakes)
graphics.off()
}

# I can open the pdf files.

Hope you can help me.
Thanks so much,

---
Jian Zhang
Department of Renewable Resources
University of Alberta
Edmonton, Alberta T6G 2H1, Canada
Phone (office): 780-492-8670
Email: jzhang1982@gmail.com; zjian@ualberta.ca
 

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Hi
Not that long ago  there was this
See
http://tolstoy.newcastle.edu.au/R/e10/help/10/04/0003.html

Duncan

Duncan Mackay
Department of Agronomy and Soil Science
University of New England
ARMIDALE NSW 2351
Email home: mackay at northnet.com.au


At 16:52 4/04/2010, you wrote:
>Hey, folk.
>
>I am trying to get many figures by using the function "xyplot" in
the
>library "lattice". I tried to using the loop to finish it quickly.
But I
>cannot open the saved file after I run the program. But if I use the 
>function "plot" to get other simply figures, it can work. So I
want to ask
>how I can get the saved figures by using "xyplot".
>
>The following is a simple example about my program:
>library(lattice)
>require(stats)
>## Tonga Trench Earthquakes
>Depth <- equal.count(quakes$depth, number=8, overlap=.1)
>for (i in 1:5) {
>filename=paste("fig",i,".pdf",sep="")
>pdf(filename,width=6.5,height=4.5)
>xyplot(lat ~ long | Depth, data = quakes)
>graphics.off()
>}
># I cannot open the pdf files.
>
>Buf if I try:
>for (i in 1:5) {
>filename=paste("fig",i,".pdf",sep="")
>pdf(filename,width=6.5,height=4.5)
>plot(lat ~ long, data = quakes)
>graphics.off()
>}
>
># I can open the pdf files.
>
>Hope you can help me.
>Thanks so much,
>
>---
>Jian Zhang
>Department of Renewable Resources
>University of Alberta
>Edmonton, Alberta T6G 2H1, Canada
>Phone (office): 780-492-8670
>Email: jzhang1982 at gmail.com; zjian at ualberta.ca
>
>
>         [[alternative HTML version deleted]]
>
>______________________________________________
>R-help at r-project.org mailing list
>https://stat.ethz.ch/mailman/listinfo/r-help
>PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
>and provide commented, minimal, self-contained, reproducible code.

Hi Jian,

Take a look at
http://CRAN.R-project.org/doc/FAQ/R-FAQ.html#Why-do-lattice_002ftrellis-graphics-not-work_003f

<http://CRAN.R-project.org/doc/FAQ/R-FAQ.html#Why-do-lattice_002ftrellis-graphics-not-work_003f>
HTH,
Jorge


On Sun, Apr 4, 2010 at 2:52 AM, Jian Zhang <> wrote:
>
> Hey, folk.
>
> I am trying to get many figures by using the function "xyplot" in
the
> library "lattice". I tried to using the loop to finish it
quickly. But I
> cannot open the saved file after I run the program. But if I use the
> function "plot" to get other simply figures, it can work. So I
want to ask
> how I can get the saved figures by using "xyplot".
>
> The following is a simple example about my program:
> library(lattice)
> require(stats)
> ## Tonga Trench Earthquakes
> Depth <- equal.count(quakes$depth, number=8, overlap=.1)
> for (i in 1:5) {
> filename=paste("fig",i,".pdf",sep="")
> pdf(filename,width=6.5,height=4.5)
> xyplot(lat ~ long | Depth, data = quakes)
> graphics.off()
> }
> # I cannot open the pdf files.
>
> Buf if I try:
> for (i in 1:5) {
> filename=paste("fig",i,".pdf",sep="")
> pdf(filename,width=6.5,height=4.5)
> plot(lat ~ long, data = quakes)
> graphics.off()
> }
>
> # I can open the pdf files.
>
> Hope you can help me.
> Thanks so much,
>
> ---
> Jian Zhang
> Department of Renewable Resources
> University of Alberta
> Edmonton, Alberta T6G 2H1, Canada
> Phone (office): 780-492-8670
> Email: jzhang1982@gmail.com; zjian@ualberta.ca
>
>
>        [[alternative HTML version deleted]]
>
> ______________________________________________
> R-help@r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide
> http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>
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