This page has the following sections:
Command recall
Interrupting commands
Starting R in varieties of Unix is quite simple. Just cd to the directory you want, and then type ”R”:
% R
If there is already a .RData file in that directory, then it will be used to fill the contents of the global environment. If you save when you quit R, then it will overwrite .RData.
If there is not a .RData file in the directory, then the global environment will initially be empty. If you save when you quit R, then it will create .RData.
You can change R’s working directory with the setwd function.
Command recall
You can probably use the arrow keys to recall previous commands and modify them.
If so, then ”control-r” will search for commands that include specified strings. For example, you might search for commands that include ”mean”.
Interrupting commands
You can use control-c to stop a command that is running. Most commands will stop right away, but some will only stop just before they are done.
Back to top level of Impatient R
Back to More R startup
jun 25, 26
Towards the basic R mindset. Previously The post ”A first step towards R from spreadsheets” provides an introduction to switching from spreadsheets to R. It also includes a list of [...]
jun 25, 26
I failed to find Kahneman’s book in the economics section of the bookshop, so I had to ask where it was. ”Oh, that’s in the psychology section.” It should have [...]
jun 25, 26
An introductory comparison of using the two languages. Background R was made especially for data analysis and graphics. SQL was made especially for databases. They are allies. The data structure [...]

