Rcaller 2.0 generated plot is rendering and empty output and the file (png) generated is also empty?
题
The Rcaller 2.0 generated plot is rendering an empty output and the file (png) generated is also empty? posting the link for the code i have used
http://stdioe.blogspot.in/2011/07/rcaller-20-calling-r-from-java.html
I used the code in the link specified above and the application runs fine but the output is a blank console without any graph plotted. It also creates a png file which is empty. am i missing something or are there any steps to be followed to eliminate the problem i am facing.
Thanks in advance..
解决方案
Hii i got the output.
solution: The work around i did was to install rjava in my R environment. It solved the problem.
I think the rjava is required to be installed in your R environment even though you import the rcaller jar file.
I perceived it as the R caller would just call the R environment but your R environment must have the rjava to do the rest of the work.
If i am wrong please correct and a better explanation is welcomed...
其他提示
rJava and RCaller are separate projects and you don't need to have rJava installed in order to use RCaller.
Only the R Package Runiversal is required and used by RCaller. Type
install.packages("Runiversal")
in R REPL and press enter before running RCaller. This is what you need.
If the generated R Code is invalid, RCaller will not handle the output or generated plots. You can also have a look at the generated code and output files in your os' temp directory.