[R] Creating images without X11

[Jillian E Kozyra]

Dear Colleagues,

We are attempting to create trees using R with our Ruby on Rails
application. However, we are running into a problem involving the
creation of the graphic. We would like them to be in either jpg or png
format so that users can save, but due to a lack of control over our
sever we are unable to start X11 server. Is there a way to create
these images without using X11 server?

Thanks,
JIllian

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