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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