On Sat, 19 Jan 2008, 文波胡 wrote:
I used JRI package in java to connect R ,and want to use R do some work
fo me.
but most thing is ok, but there is a problem for me
The best thing to do is to ask the maintainer, as the posting guide
suggests. Very few of us will be using JRI (or even know Java).
these is some code of the program:
re.eval("library(lattice)");
y=re.idleEval("print(1:10)");
y=re.eval("feq <- read.delim('c:/minist.txt',header=T)");
y=re.eval("feq1<-as.matrix(feq)");
System.out.println(y=re.eval("feq1[1,]"));
y=re.eval("jpeg()");
y=re.eval("levelplot(feq1)");
re.eval("dev.off()");
re.end();
System.out.println("end");
in these codes i load package lattice to plot my data ,but i cann't get
a right picture, the picture created is empty .
it looks like this code is not run rightly: y=re.eval("levelplot(feq1)");
See the R FAQ Q7.22: I think this is likely another example of a missing
print() call.
can some one help me thanks!
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Brian D. Ripley, [EMAIL PROTECTED]
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