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Dear List, How can I convert a list with elements being character strings, like: "c(1,2,3,4)", ?c(1,3,4,2) ? to a list with elements as numerical vectors: c(1,2,3,4), c(1,3,4,2)?? Thanks! Anna

Hello, Is there any possibility in R to see the body of the non-visible function, for example princomp? If I do : > methods(princomp) so, I get that princomp.default and princomp.formula are non-visible functions and body(princomp.default) doesnt show it. In particular, I guess I have a very nave question Id like to see how scores calculation is implemented in the function princomp.

Hello, Could somebody point me, is there any function in R which returns expected values of order statistics for normal distribution? I have been looking and couldn't find it. Thanks! Anna

Hello, May be somebody can help me... I am trying to find a solution of a convolution equation using fft (and unfortunately I do not have a good background for this). So I am just trying to figure out how it can be implemented in R. I have two multidimensional independent variables X and Z and I know their densities fx and fz, which are multidimensional arrays. So I have to find the density of

Hello, I have a question about multivariate Shapiro-Wilks test. I tried to analyze if the data I have are multivariate normal, or how far they are from being multivariate normal. However, any time I did >mshapiro.test(mydata) I get the message: Error in solve.default(R %*% t(R), tol = 1e-18) : system is computationally singular: reciprocal condition number = 5.38814e-021 I tried

Dear List, Is there any function in R to generate multivariate F distribution with given correlation/covariance matrix? Actually, I just want to generate some 2-dimentional non-normal data sets (skewed) for low (may be around 0.3 cor coeff.) negatively and also positively correlated variables ? Thanks in advance. Anna

...Below I included the error message I got. __________________________________________________________________________________ Loading required package: gWidgetsRGtk2 Loading required package: gWidgets Error in dyn.load(file, DLLpath = DLLpath, ...) : unable to load shared library '/Users/aoganyan/Library/R/2.10/library/RGtk2/libs/i386/RGtk2.so': dlopen(/Users/aoganyan/Library/R/2.10/library/RGtk2/libs/i386/RGtk2.so, 6): Library not loaded: /Library/Frameworks/GTK+.framework/Resources/lib/libgtk-x11-2.0.0.dylib Referenced from: /Users/aoganyan/Library/R/2.10/library/RGtk2/libs/i386/R...

Hello, is there any function/package in R for multivariate quantile estimation? (I couldn't find any for the moment) Thank you! Anna