similar to: rpart error message

First time to post and searched archive for this problem with no clue. My version is 2.5.1. Below is a function to check if a given date is a valid date to a given date function object. It uses try (also tried tryCatch but with same problem). When given an invalid date, I am hoping try will generate en error message which would be picked up by the geterrmessage and thus expecting a false result.

Compiling this little function gets me some strange behaviour .initDataDir <- function(){ if(file.exists(LOCATION)) { if(as.logical(file.info(LOCATION)["isdir"]))return stop(LOCATION, " exists but is not a directory") } Z <- dir.create(LOCATION) if(!Z){ stop(geterrmessage()) ## stop("Juggel") } return(Z) } > .initDataDir <-

I am looking for a way to get a warning message immediately after an evaluation within a function. To get error messages you can use geterrmessage(). But I found no function that allows me to check for warnings. Five years ago this questions has been posted but I haven't found any answer. Thanks for any help. Peter Wolf ------------ For illustration purpose a simple example follows: you

Only the default error handler puts the error message in a buffer where it can be retrieved with geterrmessage. try() replaces the default error handler. Either look at the value returned by try() or use tryCatch with conditionMessage. Best, luke On Thu, 22 Feb 2018, Dennis Fisher wrote: > R 3.4.3 > OS X > > Colleagues > > I have a 20K line script in which I encounter an

Luke Thanks ? I revised the code to: ERRORMESSAGE <- try(source(USERSCRIPTFILE, local=T), silent=T) print(ERRORMESSAGE) now returns: $value [1] 0 $visible [1] FALSE Not clear what to make of that. Dennis Dennis Fisher MD P < (The "P Less Than" Company) Phone / Fax: 1-866-PLessThan (1-866-753-7784) www.PLessThan.com > On Feb 22, 2018, at 12:45 PM, luke-tierney at

R 3.4.3 OS X Colleagues I have a 20K line script in which I encounter an unexpected problem. If the script detects presence of a particular file USERCODE.txt, it executes: source(?USERCODE.txt?) If that file is not present, the script executes without a problem. There might be syntax errors in USERCODE.txt; therefore, the code above is embedded in a try command:

Hi, at the R prompt, is it possible to retrieve the last error (as in condition object of class "error")? I'm not asking for geterrmessage(), which only returns the error message (as a character string). I'm basically looking for a .Last.error or .Last.condition, analogously to .Last.value for values, which can be used when it is "too late" (not possible) to go back

Dear All, I'm using "reg.finalizer" in a function that is to be called in R scripts to do some cleanup on success. I have not found a way to run the function only if the script run without errors, so when the exit code is expected to be 0. What I've tried is checking "geterrmessage()", but unfortunately it's not perfect: if an error was handled with eg

On Sat, Jun 8, 2019 at 2:13 PM Duncan Murdoch <murdoch.duncan at gmail.com> wrote: > > On 08/06/2019 7:42 a.m., Gergely Dar?czi wrote: > > Dear All, > > > > I'm using "reg.finalizer" in a function that is to be called in R scripts > > to do some cleanup on success. I have not found a way to run the function > > only if the script run without

Dear All I'm logging the stdout and stderr of an R program into two separate files (stderr.txt and stdout.txt) using sink() I would like to append extra information such as "date", "memory usage" etc to every line of output that goes to stdout or stderr. For example > cat("hello \n") should give output that looks something like: "hello --- Thu Jun 19

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

Dear R friends- I'm attempting to generate a regression tree with one gradient predictor and multiple responses, trying to test if change in size (turtle.data$Clength) acts as a single predictor of ten multiple diet taxa abundances (prey.data) Neither rpart or mvpart seem to allow me to do multiple responses. (Or if they can, I'm not using the functions properly.) > library(rpart)

Hi, I am using rpart decision trees to analyze customer churn. I am finding that the decision trees created are not effective because they are not able to recognize factors that influence churn. I have created an example situation below. What do I need to do to for rpart to build a tree with the variable experience? My guess is that this would happen if rpart used the loss matrix while creating

Hi, I'm currently in the process of writing an R-installation SOP for my company. As part of that process I'm using the recommendations from the 'R Installation and Administration' document, section 3.2, "Testing an installation". This is done on an XP machine, using the latest binary of 2.11.0. The binary is downloaded and then installed from the installer. I then

Hola, es la primera vez que mando un correo a cualquiera de las listas de correo de R y no se si esta consulta se ajusta al próposito de la r-help list o debería haberlo mandado a otra de las listas que hay. Mi problema es el siguiente: Estoy desarrollando un programa en java con llamadas a R y no puedo usar jri 0.4-1 con la version 2.7 o 2.6 de R. Curiosamente si me funciona si uso jri 0.4 o la

Dear R-Help, I am trying to get JRI (the rJava interface allowing Java to connect to R) to work. I was able to run it a week ago when I was doing some testing using Java 1.5. However, I am developing a GUI application using some of the new Java 1.6 features and I just can't get JRI to work with this setup. Here is what I get: Cannot find JRI native library! Please make sure that the JRI

Hello All I am trying to get the JRI examples from rJava to work on Windows XP and failing. (And as a more general and connected question is there any review/summary of front-end software for R?) I have installed rJava from the Windows binary supplied. I compile and run the example supplied (rtest.java) and get the results below. I do not think the notes about a deprecated API are a problem. But

Hi all, I am writing R code and I want to interface with JAVA i.e. I want to call R from JAVA. That's why i have installed JRI on my machine. There is also documentation available in "Javadoc". But as i am very new to JAVA and well as R, I don't understand much of it. If someone is using this package i.e. JRI, please let me know whether i am going in right direction or not.

Hi, I want to call R from within Java, using jri as per http://www.rosuda.org/software/jri/ So I am following the instructions in the README file for JRI 0.2-4. I have run 'sh configure.win' and 'make' and they seemed to be successful. (See below for the output from make, for example.) But when I try 'run.bat rtest' (with and without R command line arguments) the output

Hello, I am a new R user. More precisely, I am working with JRI (on a Eclipse Java6 project under Ubuntu9). I have difficulties to access some R packages (For example: package "stats", object "Normal", function "pnorm"). I have tried many solutions to set the right path but nothing have succeed: For example: