On 17 Mar 2008, at 20:30, Sean Anderson wrote:

On Mon, Mar 17 Mar 2008, at 16:33, Hans-Joerg Bibiko wrote:

...

Now you can select the function declaration and send it to the Rdaemon, switch to the Rdaemon doc, and you can use that function (the Rdaemon console is not "messed up", error messages could be seen with opt+apple+A 2). ...

Ah, I see. Interesting approach. I do like that in some circumstances.

Other times, however, it is nice to get some immediate feedback on errors and/or R output when sending selections of text to Rdaemon. I guess the disadvantage is that you can't have multiple console windows open without consequences. (Although I've never found myself doing that.)

Ok. I see your point here. But I'm not yet convinced ;)

Please remember, the console window (Rdaemon) is not a usual console known from R.app or R in the Terminal. It is still an editor window! If I have to develop, let's say, a new function, I also can do this within the Rdaemon console window.

Example (a Rdaemon console window):

...

myfun <- function(x,y=3) {

foo <- x * y print(Foo }

and I press shift+RETURN

I'll get this:

...

myfun <- function(x,y=3) {

+ foo <- x * y + print(Foo + } Error: unexpected '}' in: "print(Foo }"

Now I see I've forgot ")". I simply press apple+Z for undo (the window is an editor!) and I'll get:

...

myfun <- function(x,y=3) {

foo <- x * y print(Foo }

I correct this.

...

myfun <- function(x,y=3) {

foo <- x * y print(Foo) }

and press shift+RETURN

Everything seems to be fine.

Then I try it out and I'll get:

myfun(2)

Error in print(Foo) : object "Foo" not found

Oops, a typo. Now I set my caret to the line: + print(Foo)

and I correct it to

+ print(foo)

Finally I select

myfun <- function(x,y=3) {

+ foo <- x * y + print(foo) + }

and press shift+ENTER to execute only the selection (not shift+RETURN which jumps to the end of doc and executes the last command(s) [after the last prompt "> "])

I go to the line:

myfun(2)

and I press RETURN and I see my entire coding like that:

myfun <- function(x,y=3) {

+ foo <- x * y + print(foo) + }

myfun(2)

[1] 6

Error in print(Foo) : object "Foo" not found

see a screencast http://www.bibiko.de/TM_R_ex01.mov [BTW I'm just gathering some screencasts/documents to illustrate some workflows. Afterwards I'll put them on my server]

Within the Rdaemon console window you can navigate through the entire console window as usual. Go lines up to edit a command and execute it again. You can write an article in between the R prompts "> " like

Good morning,

this is an example

2+4

[1] 6

Now I want to show you what happens if ...

plot(1:10)

Ah, a plot appears.

etc. p.p.

What kind of workaround do you have regarding to writing something in a R window and send it (not quietly) to the Rdaemon?

Might be nice to simply have two bundle commands: one to send silently and one to update the console and output the result.

This new behaviour reminds me of the Emacs + ESS command 'evaluate this line/region' without switching focus. On that note, as an alternative, would it be possible to have a selection sent to the console, the output displayed, and the focus shifted back (or always staying on) the R source code window? I would find that quite useful.

In principal one can do it. I also find a way to append R's output not to the file console.Rcon but to the current content of console.Rcon by using AppleScript :) To keep the focus on the R window, could be a bit tricky, but I have something in my mind ;)

But, then we would have these different commands: -send to Rdaemon -send to Rdaemon quietly -send to Rdaemon quietly without switching focus ... (?)

Kind regards,

--Hans

BTW I'm got used to Rdaemon in such a way that I have some problems to switch to R.app ;)