similar to: Re: [R] No traceback available when using try(...) (PR#6668)

On Fri, 12 Mar 2004 12:28:48 +0100, Edouard DUCHESNAY <duchesnay@shfj.cea.fr> wrote : >> > 1. The Situation : >> > ------------------------ >> > The stack traceback is not available when error ouccured in a try(....) >> >> It's a bug in 1.8.1. It has been fixed. >> >> -thomas >I have patched R (Version 1.8.1 Patched (2004-03-11))

Hello, 1. The Situation : ------------------------ The stack traceback is not available when error ouccured in a try(....) -- test.R -------------------------------- f<-function(a){ return ( log(a) ) } try(f("A")) traceback() ------------------------------------------- I get the following message : > try(f("A")) Error in log(x) : Non-numeric argument to mathematical

http://bugzilla.mindrot.org/show_bug.cgi?id=379 papadopo at shfj.cea.fr changed: What |Removed |Added ---------------------------------------------------------------------------- Status|RESOLVED |REOPENED Resolution|WORKSFORME | ------- Additional Comments From papadopo at shfj.cea.fr 2003-05-02 20:15

On Fri, 12 Mar 2004 11:44:14 -0500, "Roger D. Peng" <rpeng@jhsph.edu> wrote : >Funny, it works for me on R-patched > > > f <- function(a) { return(log(a)) } > > f("A") >Error in log(x) : Non-numeric argument to mathematical function > > traceback() >2: log(a) >1: f("A") > > try(f("A")) >Error in log(x) :

On Wed, Aug 8, 2018 at 4:07 PM Richard W.M. Jones <rjones@redhat.com> wrote: > The tracebacks are compressed into a single line because we're using > PyObject_Str, but they are just about usable if not very readable. > For example you would see an error like this: > > nbdkit: error: ./python-exception.py: config_complete: error: ['Traceback > (most recent call

The tracebacks are compressed into a single line because we're using PyObject_Str, but they are just about usable if not very readable. For example you would see an error like this: nbdkit: error: ./python-exception.py: config_complete: error: ['Traceback (most recent call last):\n', ' File "./python-exception.py", line 54, in config_complete\n raise_error1()\n',

Hi, in R-3.1.0 (Linux), traceback() does not show the source file line number for the truncated calls, when limiting the number of lines output for each call with argument max.lines. See sample code, output and session info below (in particular, output for call number 5). I guess this is not intended. Thank you. Bests, Renaud #################### ## File: traceback.R a <- function(...){

I would like to have an automatic traceback printed on error. Is there a way to do this? options(error=traceback) seems to print the previous error, not the current error. I'm guessing this is because the traceback is not set until the error handler is done running. > options(error=traceback) > stop("1") Error: 1 No traceback available > stop("2") Error: 2 1:

The addition of `.traceback` in r70207 adds one more function to the call stack when invoking `traceback()`.? This changes the output of one of the examples to include the error handler call: > options(error = function() traceback(2)) > foo(2) [1] 1 Error in bar(2) : object 'a.variable.which.does.not.exist' not found 3: (function () ?? traceback(2))() at #1 2: bar(2) at #1 1:

Has something changed with traceback's in R-patched? When I running the examples for ?traceback, I get > foo <- function(x) { print(1); bar(2) } > bar <- function(x) { x + a.variable.which.does.not.exist } > foo(2) # gives a strange error [1] 1 Error in bar(2) : Object "a.variable.which.does.not.exist" not found > traceback() No traceback available

Dear R experts---I may have asked this in the past, but I don't think I figured out how to do this. I would like to execute traceback() automatically if my R program dies---every R programI ever invoke. I guessed that I could have wrapped my entire R code into tryCatch( ... oodles of R code , error = function(e) traceback(), finally = cat("done") } but the traceback docs tell

Hi! Is there a way to write the information stored in the .Traceback variable to a file? When I try it with dump() ".Traceback" <- list("dump(.Traceback, file = \"Mytraceback.R\")") Or there are other ways to write this information on the disk if an error occurs? Eryk

Hi, I wonder how to have R automatically print stack trace produced by traceback upon errors during interactive uses. I tried the suggestions on http://old.nabble.com/Automatically-execute-traceback-when-execution-of-script-causes-error--td22368483.html#a22368775 and used options(error = recover) options(showErrorCalls = T) It just produces an extra message like "recover called

A problem that I've encountered when using do.call a lot is very large stack traces, eg: f <- function(x) stop() do.call(error, mtcars) traceback() f <- function(x) browser() do.call(f, mtcars) I have hacked together my own version of traceback to fix this by limiting the length of each line to 80 characters, but I can't see any way to do something similar for browser. Any

For the first error message: > win.metafile(file = "//.../plot1.wmf", + width = 8.5, height = 6.25) > lset( list( background = list(col = "white"))) Error in get(x, envir, mode, inherits) : variable "win.metafile://.../plot1.wmf" was not found > traceback() 4: get(device) 3: trellis.device(device = .Device, new = FALSE) 2: trellis.par.get(item) 1:

Hi I am using R scripts which are running remotely. To make debugging easier, I would like to have the possibility to execute traceback() automatically when an error occurs. Is this possible? OS: Linux Thanks Rainer -- Rainer M. Krug, PhD (Conservation Ecology, SUN), MSc (Conservation Biology, UCT), Dipl. Phys. (Germany) Centre of Excellence for Invasion Biology Faculty of Science Natural

Hello, I've written a relatively complex interconnected population model in R. When changing a certain parameter, the outputs end up containing NA's. I would like to find out, in which step the model (in form of a loop) starts to produce NA's. Does anyone know how to achieve this? Since it does not give an error I can't use the traceback() function. Thank you very much in

Hi all, The help for traceback states: Errors which are caught _via_ 'try' or 'tryCatch' do not generate a traceback, so what is printed is the call sequence for the last uncaught error, and not necessarily for the last error. Is there any way to get a traceback (or something similar) for an error raised inside a try block? Regards, Hadley -- http://had.co.nz/

Hi fellas, I come to you to clarify/corroborate one suspicion of mine, involving nouveau. Few days since, my laptop started to create lots of kerneloops and the traceback always involves nouveau. I didn't intend to create a bug report without confirming that whether or not it really is a nouveau problem. Here is the backtrace in all its glory, attached. Kernel - 3.14.6-200.fc20.x86_64 Three

I want to use tryCatch, but tryCatch seems to obscure important things I need for debugging. For example, say I am working with an SQLite database, and have written this function: debugThisFunction <- function(dbfile) { require(RSQLite) drv <- SQLite() conn <- dbConnect(drv, dbfile) tryCatch({ dbBeginTransaction(conn) tryCatch({ for (i in 1:10) {