search for: _simplest_

Is there any generic function that gets the "home" directory? This should return /home/<user> in Linux and x:/Documents and Settings/<user> (or whatever) in Windows XP. Another (unrelated) question: what is the _simplest_ way to read and write R variables to/from files such that they are stored in a human-readable but R-like form? For example, if (say), x is a vector defined as x <- c(1, 2, 3), can I write (and read) x as a file with just one line, namely: c(1, 2, 3) ? Alberto Monteiro

We are using the free VMware Server on CentOS 4. Almost all of our VMs are CentOS 4 as well. We have 7 VMware hosts with about 40 total virtual machines. It's been a very successful architecture for us. I'm wondering how the rest of the community is managing updates of root (and other local account) passwords in a virtual sprawl environment (or a physical environment with lots of hosts).

Hi! Sorry for asking a trivial questions, but I can't seem to figure this out. I have a dataframe called master containing 30-odd variables. In this dataframe, I have observations across these 30 variables from 1930 to 2003 (I've made a "year" variable). How can I drop all rows for which the year is less than 1960? I'm assuming something with ifelse() but I can't