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Hi, I'm running simulations that include a function that occasionally fails because of an unpredictable singularity in a matrix that it tries to invert. I'd like to have the function return 'NA' when that happens, so that the...
Hi, I often work from home, running R on my office computer and displaying interactive graphics on my home computer using X11. This was always more sluggish than sitting at my office computer, obviously, but recently the graphics transfer has...
I'm trying to install R under Ubuntu 7.10 (gutsy; Linux 2.6.22-15-generic x86_64). Following the instructions at http://cran.r-project.org/bin/linux/ubuntu/README, I installed r-base, r-base-core, and...
It appears to be a difference between versions 2.* and 3.* in the way that a newline ('enter') is handled at the browser prompt. Formerly, it would continue execution of the function; now it kicks you into debugging mode. To...
The function 'regsubsets' appears to calculate a BIC value that is different from that returned by the function 'BIC'. The latter is explained in the documentation, but I can't find an expression for the statistic returned by 'regsubsets'. Incidentally...
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