graphs, X11 and others
On Dec 9, 2004, at 11:10 AM, Tiago R Magalhaes wrote:
Thanks again for all your help. I am writing a summary to send tothe mailing list about my problems and how to solve them. 1) Briefly Iinstalled X11 and it works now. 2)I downloaded GhostScript from fink,have it on my computer, but bitmap() still can't find it.
Make sure it's on the PATH. If you had used i-Installer then it would be on the PATH already... If you used fink to install gs, then this is more easily said than done, because it heavily depends on where you use it from. But I assume that you want to use it from R, so the most reliable thing to do is to create a symlink in /usr/local/bin, because R automatically adds that directory to the PATH. First, you have to find out where gs lives - I guess it should be somewhere in /sw as that's what fink uses by default. Let's say you find it in /sw/bin/gs then what you need to do is to type in Terminal: sudo ln -s /sw/bin/gs /usr/local/bin/gs if it complains that /usr/local/bin doesn't exist, then type sudo mkdir -p /usr/local/bin and repeat the above - that should give you gs in R
The main problem was somewhere else. Apart from installationproblems, the main issue was that I didn't know what jpeg() or pdf()were doing. I thought the functions were saving the plots AFTER theplots are done.
All this is documented in R help pages ...and the examples, too :P BTW, AFAIR: the ## End(not run) comments are generated automatically to denote examples that are not run when doing make check - so it's not something the writers of the documentation put there to annoy you ;).
Value: A plot device isopened: nothing is returned to the R interpreter. (add something like: jpeg() opens a device where plots can beplaced. dev.off() exist the plot saving the plot in the"file").
Since the device calls are mostly used in scripts, it would lead to quite nasty results if they were that noisy. R is a fairly complex software - if you want to use all its features, you have to learn a lot about it. If you don't want to learn, just relay on the tools that make things more simpler, but then you have to live with using only a fraction of the available functionality.
Editor undobasically deletes everything. (scary) Sometimes theeditor doesn't select, sometimes using delete deletes a lot of thingsnot only the last key.
Can you, please, describe reproducible examples? The description you gave is somewhat useless, because not specific. I know only about the undo issue which is being worked on. If you use a PowerBook, make sure your problems are not caused by you hitting the touchpad involuntarily - that's the most common editing issue, but that's independent of the software ...
1) To stop the runif there's an error. I've had cases where I had an error in one line,and the script continue to run and the result was misleading. I wouldstrongly prefer to have the script stop it there is anerror
What do you mean by "there's an error"?!?! runif is just a function and if there is an error (I wonder how one can force runif to get en error :P), it will indeed stop ... you can influence the behavior of R on an error yourself, again, please read the docs or get a book on R ...
2) Ad lines to theeditor
I guess, you mean line numbers here (because there *are* lines in the editor ;)) - this is planned ...
3) shortcutallowing the line where the cursor is to be passed to the console(without having to select it) and move to the next line
Well, that's a bit ambiguous, because quite often you have multi-line statements, but yes, that could be done easily. Currently you get the same effect by using <Option><Shift><Up>, <Cmd><Enter> sequence (if in doubt, hitting <Option><Down> before ;)).
4) shortcut tohelp when highlighting a word
Good idea - we should adopt the way Apple handles this in Xcode ... shortcut for the help and take the selected word as a starting point
Many things on thebrowser - briefly I would like it to more similar to dbExplorer inSplus :-)
Well, the browser will be completely re-written soon, because the current one is far from perfect, but our resources are very limited, so it will take a while unless another Cocoa volunteer with good knowledge of R internals will pop up ;).
Someone told methat Jaguar does all this. I downloaded, installed and it seemed to doit. I'll give it another try.
Yes, that's right - one of the cool features in JGR is the object browser. Cheers, Simon