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Full_Name: Joseph Amuah Version: 2.7.0 (2008-04-22) OS: Windows Submission from: (NULL) (205.207.78.4) I used the plot function to create some graphs but wanted to add soem restrictions. A set of warning were produced even though the plot worked fine. Can these warnings be cleaned up? Here is an example: *************************************** > plot(xx$month, xx$log10RR, xlab="",

Hello I am running a simulation study to assess the type I error rate of a likelihood ratio test. This requires me to minimize over restricted spaces under the null and under the alternative hypothesis. My problem is that occassionally I run into an error message that reads: "Error in solve.default(cov, ...) : Lapack routine dgesv: system is exactly singular" when I make a call to