search for: taskcallbackmanager

Dear R-help, Would it be possible to have the "prompt" option accept a function, such as date()? This way, I can easily deduce the elapse time of top level R expressions. This would be similar to how Unix shells handle their prompt variables. Cheers, Andy ------------------------------------------------------------------------------ Notice: This e-mail message, together with any

...t it has no > effect on that. > > No. "<-" creates an invisible object as its return value and they > don't print until you "visiblify" them. One standard device is to put > the whole thing in parentheses: (a <- rep(1,10)). But couldn't he use the taskCallbackManager() to print .Last.value after every evaluation at the top level? I'd guess that sort of does what Daniel wants. Cheers, Andy ------------------------------------------------------------------------------ Notice: This e-mail message, together with any attachments, contains information of Merc...

Is it possible to replace the word "R Console" on the title bar (is it what it's called? It's the blue area above menu bar) with the name of the work space file you're using or loaded, so people who are runing multple R sessions at same time can identify them immediately. I'm using 1.9.0 in SDI mode. Thanks, ...Tao

Is it possible to replace the word "R Console" on the title bar (is it what it's called? It's the blue area above menu bar) with the name of the work space file you're using or loaded, so people who are runing multple R sessions at same time can identify them immediately. I'm using 1.9.0 in SDI mode. Thanks, ...Tao

Hello R-help, I wonder if it is possible to configure R, so that it will display/show the evaluation result of the R commands automatically (similar to the behavior of Matlab) i.e. If I type x <- 8 it will print 8 in the command prompt, instead of having type x explicitly to show the result and perhaps put an ";" at the end to suppress the output. i.e. x <- 8; Thank you

R does provide the addTaskCallback / taskCallbackManager to run a callback function after every top level command. However there is not an equivalent interface that would be run _before_ each command, which would make it possible to time of top level calls and provide other execution measurements. On Thu, Dec 21, 2017 at 11:31 AM, William Dunlap via R-d...

Dear R Developers, Adding to source() base function a Timer which indicates the execution time of the source code would be a very well welcome feature, and in my opinion not difficult to implement as an additional funtion argument. The source(timing = TRUE) function shall execute internally the following code for each statement: old <- Sys.time() # get start time at the beginning of source()

R is quite a powerful environment. Here's a small way it could be even better. I wanted to change the working directory, so I tried the obvious thing > cd("foo") Error: couldn't find function "cd" Then I looked for `directory' in the FAQ but found nothing. A search for directory in the introduction also turned up nothing. A Google search for "gnu R

...example missing link(s): xtabs chisq.test xtabs ftable tabulate text html latex example tapply text html latex example missing link(s): aggregate taskCallback text html latex example taskCallbackManager text html latex example taskCallbackNames text html latex example tempfile text html latex example textconnections text html latex example missing link(s): capture.output tilde...

...curently being evaluated in the frame \code{n} generations back. + currently being evaluated in the frame \code{n} generations back. \code{sys.frames} gives a list of all the active frames and \code{sys.parents} gives the indices of the parent frames of each Index: src/library/base/man/taskCallbackManager.Rd =================================================================== RCS file: /cvs/R/src/library/base/man/taskCallbackManager.Rd,v retrieving revision 1.3 diff -u -r1.3 taskCallbackManager.Rd --- src/library/base/man/taskCallbackManager.Rd 2003/07/08 00:20:19 1.3 +++ src/library/base/man/taskCal...

...html latex example table text html latex example tabulate text html latex example tapply text html latex example taskCallback text html latex example taskCallbackManager text html latex example taskCallbackNames text html latex example tempfile text html latex example termplot text html latex example terms text html...