[R] xyplot

[Wayne.W.Jones at shell.com]

When you call xyplot in a for loop you have to use the print command. For instance modifying the xyplot example: 


The following wont work: 

Depth <- equal.count(quakes$depth, number=8, overlap=.1)
for(i in 1:3){xyplot(lat ~ long | Depth, data = quakes)}


But this will: 

for(i in 1:3){print(xyplot(lat ~ long | Depth, data = quakes))}

Regards

Wayne




-----Original Message-----
From: r-help-bounces at r-project.org
[mailto:r-help-bounces at r-project.org]On Behalf Of Samor Gandhi
Sent: 01 October 2007 15:20
To: r-help at stat.math.ethz.ch
Subject: [R] xyplot


Hello,
  I am calling the following code with the loop! It makes 3 out graphs but empty! COuld you help me plase on that? Thank you in advance
   
  z1 <-  dbConnect(MyData, "something", "A1", "A2")
for (tt in c("xyz", "abc", "m1")) {
 message(paste("Here", tt, "!!!"))
 mydata <- dbReadTable(z1, tt)
 jpeg(file=paste("D:/", tt, ".jpg", sep=""), width=00, height=100)
 plot.method="bitmap"
 xyplot(MyVALUE ~ MyNo | as.character(ID), data = mydata, main = tt, xlab = " ", ylab = " ", type="l")
 dev.off()
 
}

       
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