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Hi, rgl plots seem to require the z object in the form of a matrix. I would like some help in constructing this matrix when I cannot use the outer function. Let me explain. library(rgl) library(plot3D) x <- 1:10 y <- 1:20 fun1 <- function (x,y) {x^2+y^2} z <- outer(x,y, fun1) open3d() surface3d(x,y,z,col="red",theta=50, phi=20) This works fine. However, when I have a data

I have now followed your advice and switched to the R-sig-debian help list. Ravi On Thursday, 15 May 2025 at 12:59:05 CEST, ravi <rv15i at yahoo.se> wrote: I did some googling and then ran: > bspm::shadowed_packages() ???? Package???????????????? LibPath Version?????? Shadow.LibPath Shadow.Version Shadow.Newer bspm????bspm /usr/lib/R/site-library?? 0.5.7 /home/ravi/rvi/Rlib??????????0.5.7????????FALSE I have a copy of bsp...

Hi, In Windows, I follow a method with customized library locations that has worked for me when upgrading to new R versions.? I have not been able to follow the same method in Ubuntu. I would like to have help. Let me explain. In windows, I add the following line: .libPaths(c(?C:/Rownlib?,?C:/R/R-4.5.0/library?)) ? ????in the file C:/R/R-4.5.0/etc/Rprofile.site I have my own list of packages in

...ous attempt in installing r2u. The package in the /usr/lib/R/site-library location has a lock icon associated with it. Is this intentional, or is it something that I should do something about? Which of the two copies of bspm should I delete? Ravi On Thursday, 15 May 2025 at 12:32:59 CEST, ravi <rv15i at yahoo.se> wrote: Thanks, Dirk for reaching out and helping me with these tips. I must first say that I am beginner to Ubuntu. I am a stranger to Docker and therefore to Rocker as well. I will try to read and follow up on these leads. For now, I am interested in r2u and would like to fo...