Enables the usage of R views using the local R installation. The View displays the R View generated by the R command entered within the dialog. The data is available from the in-port R workspace which is imported into R (saved in the variable named R) and the entered commands are executed. The resulting png file is passed into KNIME and is displayed in the node's view.
Be aware that if you use R commands like png() or bmp() etc., you will open a new graphic device to draw the plot to. This means that the graphic device used by this node to display the plot is not used anymore and the view will show a empty image. It is heavily recommended not to used such R commands.

More details about R:
http://www.r-project.org/
Short-refcard.pdf