similar to: tryCatch question

Displaying 20 results from an estimated 2000 matches similar to: "tryCatch question"

2011 Jul 10
1
Help with tryCatch
Having a hard time understanding the help files for tryCatch. Looking for a little help with the following statement which sits inside a for loop zest[i] <- tryCatch(sapply(getNodeSet(zdoc, "//zestimate/amount"), xmlValue), error=function() zest[i] <-"NA") zest is a numeric vector If the sapply statement evaluates to an error, I'd like to set the value of zest[i]
2017 Dec 01
3
tryCatch in on.exit()
The following example involves a function whose on.exit() expression both generates an error and catches the error. The body of the function also generates an error. When calling the function wrapped in a tryCatch, should that tryCatch's error function be given the error from the body of the function, since the one from the on.exit has already been dealt with? Currently the outer tryCatch
2015 May 28
2
problemas con tryCatch
Buenos días, Quiero hacer una función con un "if", que si devuelve un error dentro de él se pare la ejecución de la función devolviendo un valor. El código que tengo, para las pruebas, es el siguiente: prueba<-function(a){ b<-"no ha hecho stop" c<-"hago el stop" if(a<3){ variable<-"hola" tryCatch({ write("entro en el
2023 May 18
1
suprising behaviour of tryCatch()
G'day Federico, On Wed, 17 May 2023 10:42:17 +0000 "Calboli Federico (LUKE)" <federico.calboli at luke.fi> wrote: > sexsnp = rep(NA, 1750) > for(i in 1:1750){tryCatch(sexsnp[i] = fisher.test(table(data[,3], > data[,i + 38]))$p, error = function(e) print(NA))} Error: unexpected > '=' in "for(i in 1:1750){tryCatch(sexsnp[i] =" Try: R> for(i in
2011 Mar 10
1
tryCatch - Continuing for/next loop after error
Dear all, I am not sure I understand fully the functionality of "tryCatch" and "try" commands and how these are used to continue a for/next loop if an error occurs within the loop. Can somebody point me to material (or share some code) with more extensive examples than the ones in the help/FAQ pages? Do explain my problem in more detail: for (i in 100:1000) { ## do
2023 May 17
4
suprising behaviour of tryCatch()
Hello, I run a fisher.test() in a loop, with the issue that some of the data will not be useable. To protect the loop I used tryCatch but: sexsnp = rep(NA, 1750) for(i in 1:1750){tryCatch(sexsnp[i] = fisher.test(table(data[,3], data[,i + 38]))$p, error = function(e) print(NA))} Error: unexpected '=' in "for(i in 1:1750){tryCatch(sexsnp[i] =" But this works: for(i in
2007 Feb 12
2
help with tryCatch
Could smb please help with try-catch encapsulating a function for downloading. Let's say I have a character vector of symbols and want to download each one and surround by try and catch to be safe # get.hist.quote() is in library(tseries), but the question does not depend on it, I could be sourcing local files instead ans=null;error=null; for ( sym in sym.vec){
2004 Jun 10
1
tryCatch() and preventing interrupts in 'finally'
With tryCatch() it is possible to catch interrupts with tryCatch(). Then you can use a 'finally' statement to clean up, release resources etc. However, how can I "protect" against additional interrupts? This is a concern when the hold down Ctrl+C and generates a sequence of interrupts. Example: tryCatch({ cat("Press Ctrl+C...\n"); Sys.sleep(5); }, interrupt =
2011 May 04
1
tryCatch?
I would like to do inserts into a database table, but do updates in the fairly rare cases in which the inserts fail. I thought tryCatch might be the way to do it, but I honestly do not understand the help file for tryCatch at all. I thought something like this might work: for (i in seq(along = tbl$key)) { tryCatch(sqlSave(pg, tbl[i, ], "tbl", append = TRUE, rownames = FALSE),
2011 Dec 06
2
To Try or to TryCatch, I have tried to long
So after about 4 hours struggling with Try and TryCatch I am throwing in the towel. I have a more complicated function that used logspline through iterative distributions and at some point the logspline doesnt function correctly for some subsets but is fine with others so I need to be able to identify when the error occurs and stop curtailing the distribution and I think this Try or TryCatch
2011 Mar 18
2
Understanding tryCatch
I've read the help and the archives on tryCatch but I'm still stuggling trying to understand how it works exactly and how I can use it to get the result I need. I have a data.frame of urls which point to 11 .zip files. Basically I use RCurl to get the list of files from a ftp and then reduce that directory dump to the 11 zip files I want to download. Its easy enough to do that in a loop
2011 Nov 09
3
Help with tryCatch with a for loop
Hello all, I'm a beginner in R working on a script that will produce a set of models (linear, polynomial and logistic) for each location in a dataset. However, the self-starting logistic model often fails - if this happens I would like to just skip to the next iteration of the loop using tryCatch. I've looked at a few examples and read the help file, but didn't understand tryCatch
2023 May 18
1
suprising behaviour of tryCatch()
Because `<-` and `=` do different things (and I am one of the old fossils that wish they had not been confounded). `fun(x <- expr)` Assigns the value of `expr` to the variable `x` in the frame/environment that `fun` is called from. `fun(x = expr)` Assigns the value of `expr`to the variable `x` in the frame/environment created for and used by `fun` subject to the rules of argument matching.
2019 Sep 15
2
REprintf could be caught by tryCatch(message)
Dear R-devel community, There appears to be an inconsistency in R C API about the exceptions that can be raised from C code. Mapping of R C funs to corresponding R functions is as follows. error -> stop warning -> warning REprintf -> message Rprintf -> cat Rprint/cat is of course not an exception, I listed it just for completeness. The inconsistency I would like to report is
2013 Feb 13
1
R CMD in batch mode/trycatch() keeps hold on resources
HI all, I am using R (version 2.13.1) in batch mode on a server and I use trycatch() to handle the exceptions. When the code run without any exceptions, everything goes fine, however as soon as trycatch handle an error, my code works fine but R keeps hold on the folder after quiting. Therefore when I try to delete the folder it cannot... do you have any idea of which function can be the
2005 Nov 23
2
TryCatch() with read.csv("http://...")
Hi, folks! I'm trying to pull in data using read.csv("my URL goes here"), and it really works fantastically. Amazing to pull in live data right off the internet, into RAM, and get busy... however... occasionally there is a server problem, or the data are not up yet, and instead of pushing through a nice CSV file, the server sends a 404 "Not Found" page... Since the
2012 Aug 11
2
Stopping all code execution when ANY error occurs (OR error handling without try/tryCatch)
Hi all, I often run a bunch of code with Run Selection, and, after it's done running, I find there have been like 20 errors, all due to an error that occurred early in my code, which caused problems from there on. (I must then scroll up through lots of code to find it.) What I would like is for R to stop executing when an error occurs. I am aware of a few solutions: 1. Put all the code in a
2005 Oct 31
2
Help with try or tryCatch
I am having trouble with try and tryCatch. I have read the documentation but I just don't get it. Here is what I am trying to do. I am testing a function which has a number of parameters. I want to test it for different values of the parameters and I have some loops, in the middle of which is a test of the function. Sometimes the routine fails and so I have put the bit that might fail
2019 Sep 15
2
[External] REprintf could be caught by tryCatch(message)
Thank you Luke for prompt reply. Is it possible then to request a new function to R C API "message" that would equivalent to R "message" function? Similarly as we now have C "warning" and C "error" functions. Best, Jan On Sun, Sep 15, 2019 at 5:25 PM Tierney, Luke <luke-tierney at uiowa.edu> wrote: > > On Sun, 15 Sep 2019, Jan Gorecki wrote:
2012 May 25
1
question about TryCatch and lapply
Folks: I've replaced an outer for-loop with lapply and it works great. But, I can't seem to do the following type of exception handling: tryCatch(dlmMLE(x)$value==Inf,error = function(e) NULL) which basically says if the likelihood is Inf, throw an error. But what I want it to do is just go to the next index in the list. When I was using a for-loop I used: