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Dear Ravi, I wrote r-help at r-project.org some weeks ago because I had troubles doing an optimization with constraints and your answer was really helpful. Thanks again. Now I am trying to use spg with another setting...
Hi everyone, i've been trying to make a special plot with ggplot2, but I can't get it to fill the polygon I'd like to see filled so very very much. I want to display the difference or...
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