Several libraries won't load with (PR#6927)
From: Uwe Ligges rmh@temple.edu wrote:
[...]
3. Martin's comment
> Are you running another version of R simultaneously? > IIRC, Windoze has the nice feature to sometimes lock
files when
> it shouldn't.
isn't the problem. I have two Rgui and one iESS [R]
running and all three
have loaded the Hmisc and multcomp packages.
Maybe, but after you have loaded the package, you cannot overwrite it, because the dll files are locked (yes, dlls are locked when in use under Windows). So Martin's analysis was correct. Therefore you have to detach those packages you want to re-install or update (and also close all chm documentation - or even better close corresponding instances of R). Uwe
Rich
In `older' versions of R on Windows, detach()ing a package that contains dll does not unload (or at least unlock) the dll. I have not tried the current version. It's much safer to quit _all_ instances of R, restart, and re-install the packages. Pre-compiled packages for Windows can be installed in sort of four ways: 1. The Rgui menu 2. install.packages() from the R prompt 3. Download the zip file and unpack in the desired directory 4. Download the zip file and use install.packages(..., CRAN=NULL) For #3 above, link.html.help() should be run at the R prompt post-unzip. HTH, Andy