search for: wonsang

Dear Fellows, I would like to know how to uncompress a gz file at the R console. I could not find out any help from the R-help archive. Thanks for your great help. Best Regards, Wonsang You ----- -- Wonsang You Special Lab Non-Invasive Brain Imaging Leibniz Institute for Neurobiology http://www.ifn-magdeburg.de -- View this message in context: http://r.789695.n4.nabble.com/How-to-uncompress-a-gz-file-in-R-tp2538669p2538669.html Sent from the R help mailing list archive at Nabbl...

...7 8 9 10 b<-t(c(11,12,13,14,15)) b= 11 12 13 14 15 Then, I want to combine a and b as follows. c= 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 If you teach me to easily combine the matrix and the vector, I will greatly appreciate you. Thank you. Regards, Wonsang ----- -- Wonsang You Special Lab Non-Invasive Brain Imaging Leibniz Institute for Neurobiology http://www.ifn-magdeburg.de -- View this message in context: http://r.789695.n4.nabble.com/How-to-combine-matrix-and-vector-tp2541797p2541797.html Sent from the R help mailing list archive at Nabble.co...

...Helpers, I have attempted "optim" function to solve a two-dimensional optimization problem. It took around 25 second to complete the procedure. However, I want to reduce the computation time: less than 7 second. Is there any optimization function in R which is very rapid? Best Regards, Wonsang ----- Wonsang You Leibniz Institute for Neurobiology -- View this message in context: http://r.789695.n4.nabble.com/R-Fast-Two-Dimensional-Optimization-tp3053782p3053782.html Sent from the R help mailing list archive at Nabble.com. [[alternative HTML version deleted]]

...gure did not contain all data since most of data were outside the predefined range. I am wondering about how to control xlim and ylim adaptive to the real range of data, in order to include all data in the figure. Thank you for your great help and contribution. Best Regards, Stephen You ----- -- Wonsang You Special Lab Non-Invasive Brain Imaging Leibniz Institute for Neurobiology http://www.ifn-magdeburg.de -- View this message in context: http://r.789695.n4.nabble.com/How-to-Adaptively-Set-Up-the-Coordinate-Range-of-Multiple-Graphs-in-One-Figure-tp2401337p2401337.html Sent from the R help mailin...

..., max.generations=10, wait.generations=3) Then, I had the following error message. Error in solve.default(Djl) : system is computationally singular: reciprocal condition number = 0 Can anyone give me some tip on how to fix the problem? Thank you for your great help in advance. Best Regards, Wonsang You ----- -- Wonsang You Special Lab Non-Invasive Brain Imaging Leibniz Institute for Neurobiology http://www.ifn-magdeburg.de -- View this message in context: http://r.789695.n4.nabble.com/How-to-fix-error-in-the-package-rgenoud-tp2993489p2993489.html Sent from the R help mailing list archive a...

...on 'convolve' only for one-dimensional convolution, but it is just for a 1D sequence. Is there any function for 2D convolution? For theory, please refer to the following link: http://www.songho.ca/dsp/convolution/convolution2d_example.html Thank you for your help in advance. Best Regards, Wonsang ----- Wonsang You Leibniz Institute for Neurobiology -- View this message in context: http://r.789695.n4.nabble.com/2D-Convolution-Function-tp3326158p3326158.html Sent from the R help mailing list archive at Nabble.com. [[alternative HTML version deleted]]

...e fractional Brownian motion (mFBM) or multivariate fractional Gaussian noise (mFGN) when a covariance matrix are given. Unfortunately, I could not find such a package or code. Can you suggest any solution for multivariate FBM and FGN simulation? Thank you for your help. Best Regards, Ryan ----- Wonsang You Leibniz Institute for Neurobiology -- View this message in context: http://r.789695.n4.nabble.com/Simulation-of-Multivariate-Fractional-Gaussian-Noise-and-Fractional-Brownian-Motion-tp3276296p3276296.html Sent from the R help mailing list archive at Nabble.com. [[alternative HTML version del...

..."double", filename = "header.ff", overwrite = TRUE) Possible actions: 1: abort (with core dump, if enabled) 2: normal R exit 3: exit R without saving workspace 4: exit R saving workspace Selection: Can anyone give an advice to solve the problem? Best Regards, Ryan ----- Wonsang You Leibniz Institute for Neurobiology -- View this message in context: http://r.789695.n4.nabble.com/Error-of-memory-not-mapped-in-ff-Package-with-VirtualBox-tp3253856p3253856.html Sent from the R help mailing list archive at Nabble.com.

Full_Name: Ankhee Dutta Version: 2.3 OS: LINUX Submission from: (NULL) (202.141.12.97) I have a linux system of Mandriva-2007 with R version 2.3.0 and MySQL with 5.0.0. I have also got DBI-R database interface version-0.1-11 installed on my Linux system.While installing RMySQL package version 0.5-11 i am facing problem . while installation the error report which is coming is as follows:

...es in KiteChart (plotrix) (elpape) 5. exponentiate elements of a whole matrix (Maas James Dr (MED)) 6. Re: exponentiate elements of a whole matrix (Barry Rowlingson) 7. Re: exponentiate elements of a whole matrix (Berwin A Turlach) 8. How to fix error in the package 'rgenoud' (Wonsang You) 9. Re: vertical kites in KiteChart (plotrix) (Jim Lemon) 10. Re: vertical kites in KiteChart (plotrix) (Michael Bedward) 11. Re: Lattice: arbitrary abline in multiple histograms (Dennis Murphy) 12. Re: compare histograms (Dennis Murphy) 13. Re: Data Gaps (Dennis Murphy) 14....

...?summaryRprof running at 100% cpu for one hour ... (Kjetil Halvorsen) 26. Re: ?summaryRprof running at 100% cpu for one hour ... (Mike Marchywka) 27. hierarchical mixture modelling (Mike Lawrence) 28. Check for is.object (Santosh Srinivas) 29. Fast Two-Dimensional Optimization (Wonsang You) 30. Re: plotting a timeline (?ukasz R?c?awowicz) 31. Re: memory profiling (Patrick Leyshock) 32. Re: ?summaryRprof running at 100% cpu for one hour ... (Kjetil Halvorsen) 33. Re: An empty grey diagram (Martin Maechler) 34. Re: ?summaryRprof running at 100% cpu for one hour ......