similar to: locator and print

I am attempting to use locator(n=2) to select the corners of several (5 in this case) rectangles on an image displayed in a JavaGD window. The returned coords are used to draw labeled rectangles around the selected region. I have tried several things to get this to work including sys.Sleep to correct what appears to be a timing issue with this loop. The first-time print in the loop

I was wondering if someone could help me! Here is what I don't understand! Why the text in the function isn't showing up before the locator action? ########### plot(1:10) toto<-function(){ cat("Why this text isn't showing up before the point selection !!!!!!!!") point<-locator(2) return(point) } toto() P.S.: I am using the most recent version of R for mac Thanks

There's a non-compatibility between R and S-plus with the default argument of the locator() function. R has locator(n=1) S-plus has locator(n=500, type="n", noclick=F) S's default is ``better'' I think, insofar as it means in 99% of the cases ``user clicks <left> as many times as wanted and then clicks <right> to end'' Ross Ihaka and his grad

All, Does anyone know if there is an option I can set to turn screen-buffered output on and off with the win32 rgui? (Apart from the point and click method). I am running some simulations where it is useful to watch output but it gets mildly tiresome having to manually switch things on and off via the gui. Thanks Toby. > version _ platform i386-pc-mingw32 arch

Hi all, Can anyone help me understand why an implicit print (i.e. just typing df at the console), is so much slower than an explicit print (i.e. print(df)) in the example below? I see the difference in both Rstudio and in a terminal. # Construct large df as quickly as possible dummy <- 1:18e6 df <- lapply(1:10, function(x) dummy) names(df) <- letters[1:10] class(df) <-

Hi all, Easy question for you (which I failed to find the answer to in the FAQ etc). I've recently been forced to switch from linux to windows (currently windows NT), and my usual habit of putting lots of "cat" statements in slow functions to get an idea of the progress rate is no longer useful. Why -- because R waits until the function is completely finished before printing the cat

Hi I have a loop which is doing time consuming calculations and I would like to be able to have some feedback on where it is in it's calculations. I tried to simply show the counter variable in the loop, but id doesn't work as all display seems to be delayed until the loop is completed. Is there any way of displaying the progress of a loop? Rainer The loop: for (i in

Dear R-users, I?m having for the first time a problem while printing out values in the screen, I have a function wich takes quite a long time to execute, and I thought it?d be useful to insert a print statement inside the main loop to keep control of the current iteration, however, for some reason, the prints() are not shown in real time, and only when I stop the execution, all prints up to

Hi, This set of patches remarkably accelerates IDE PIO on HVM/IA64. I got a throughput of 2.11MB/sec in disk read performance. Without it, it was only 64kB/sec. I posted the prototype once. http://lists.xensource.com/archives/html/xen-devel/2006-12/msg00077.html The basic idea is to add a buffering mechanism in a hypervisor. I know this approach is not sophisticated. But there is no other good

In several tries, I am finding the locator and identify functions on the cairo device on Windows, with R-2.13.0, do not seem to work correctly. Here is my experience with locator where I click the four corners of the device window. First, with the windows() device, the results are consistent with what I see on screen > windows() > plot(1,1) > locator() $x [1] 0.6075000 1.3981252

Full_Name: Sascha Frydman Version: 2.1.0 OS: Windows XP Submission from: (NULL) (147.66.131.10) when Esc is pressed while a plot with locator running has the focus, R crashes. eg. plot(1) locator(1) I am running in SDI mode

On Friday 18 December 2009 13:56, David Greene wrote: > On Friday 18 December 2009 13:53, David Greene wrote: > > > > + void releaseStream() { > > > > + // Delete the stream if needed. Otherwise, transfer the buffer > > > > + // settings from this raw_ostream back to the underlying > > > > stream. + if (!TheStream) > > >

Hi, I'd like to plot vertical lines on my plot using the locator.But since locator returns two values I end up getting 2 vertical lines for every click.Is there some way only the x coordinate from locator can be returned? -- Rajesh.J ------------------------------------------------------------ "I skate to where the puck is going to be, not where it has been." - Wayne Gretzky

locator(n=1) returns the coordinates of the position of the mouse. But you have to click the left button of the mouse. How can I determine the mouse position without any click? Is it possible to extend locator in a way that locator(n=0) outputs the coordinates at once, without any click event? TclTk allows us to define very nice animations and demonstrations, see for example: demo(tkdensity).

Hello, I'm trying to write a function using tcltk to interactively modify a plot and gather locator() data. I've read Peter's articles in Rnews, the help pages in tcltk, http://bioinf.wehi.edu.au/~wettenhall/RTclTkExamples/, plus a post in R-help sometime ago, but haven't found a solution. The idea goes something like this: require(tcltk) testplot <- function() { getcoords

Hi, haven't been here for a while, but everyone one was always so helpful I thought I would ask you another really basic question. I'm running R2.9.1 in Ubuntu8.04 on a netbook (maxed out on memory etc so I don't think that's a problem - wth it's a Dell Mini 9" with that lpia non-architecture you told me about). Anyway, some of the graphics functions/parameters are

Hi all A couple of questions for you on domain integration: Firstly, can someone please explain to me where/how a samba device's site info is cached? I see from a trace that when winbind starts it goes through the usual process that a windows device does (DNS query for non site-specific SRV, LDAP query/response with site name, DNS query for site-specific SRV). - How is the site info

In both the versions of 0.63.3 I have compiled locator() gives silly results for log axes eg > plot(1:10,log="x") > locator(1) #click on the point at (4,4) $x [1] 9694.383 $y [1] 4.034130 It appears that the x coordinate is 10^right number -- it's getting unlogged twice --please do not edit the information below-- Version: platform = sparc-sun-solaris2.6 arch = sparc

Is there a way to turn of the (annoying) beep that occurs when one calls the locator() command and clicks the mouse. Try plot(0) locator(n=10) I am running Rterm on WindowsMe/Cygwin bash and I don't know if this is the case on other platforms. Thanks to everyone! Henrik Bengtsson h b @ m a t h s . l t h . s e

Dear R People: I'm using the locator() function on a chart and I select two values. Is there a way already in place to connect the two values with a line segment, please? Just thought I'd check before I started coding. Thanks in advance, Sincerely, Erin -- Erin Hodgess Associate Professor Department of Computer and Mathematical Sciences University of Houston - Downtown mailto: