[R] R comic graph

Hi, I would like to do comic graph in R, the following website have some examples. The graph is working fine, but font doesn't work. Not in basic plot or ggplot. Is there any other ways to have comic font for the text? http://stackoverflow.com/questions/12675147/how-can-we-make-xkcd-style-graph

[R] FW: R help - shell() in Linux

Hi, I have a question. When I run R script in Windows, I can use shell() function. But there is no such a function in Linux machine, what I should do in the Linux machine? Thanks a lot! Jess [[alternative HTML version deleted]] _

[R] AlgDesign - $D $A $Ge $Dea

Hi, I am wondering how I should interpreate the output of optFederov() in AlgDesign. Specially I want to know what is $D, $A, $Ge and $Dea, which one I can use as an efficiency to say how good the optimal design is. I only know when a orthogonal design comes, $D = 1. I red the pdf document