So OpenMx is working fine on my 32-bit R (which I tend not to use anymore), but is there a way to install the 64-bit version of the package?
Error: package 'OpenMx' is not installed for 'arch=x86_64'
What platform are you using? A faster option (for you) might be to download the source and compile it on your 64-bit machine. The NPSOL library might be an issue. We have 64-bit versions of NPSOL compiled only for linux.
I'm on Mac OSX Leopard. It's not a huge deal to get the 64-bit working actually, although I'd want to do it eventually in case I need to work with OpenMx on huge datasets. Thanks...
This is a good idea to get on with. We'll need to compile a 64bit version of npsol for OSX, though. Let's bring that up with Mike Wilde.