If you really want to skip to the next line on an error without checking, then wrap each line in 'try', or put blocks in a try:
try(...expr...) try(...expr...) try({ ....expr... ....expr.... ....expr.... }) On Fri, Aug 14, 2009 at 8:51 AM, Nir Shachaf<nirshac...@gmail.com> wrote: > Thanks again for your reply, Thierry. > > Packing several functions into another function > would again seem to create a nested structure > (only slightly smaller). > > The simplest solution would be to use [R]'s parsing > or evaluation commands to skip to the next line > once a certain function returns an error > > All the best, > Nir > > On Thu, Aug 13, 2009 at 1:07 PM, ONKELINX, > Thierry<thierry.onkel...@inbo.ber > wrote: >> It depends on how you want to deal with errors. If you need to do some >> depeding on the function that throws an error then you need a nested >> structure. Otherwise you can wrap all the functions in a big function an >> try() that function. >> >> Big_function <- function(some params, ...){ >> s1 <- func1(some params) # can generate errors >> s2 <- func2(s1,...) # yes she can aswell >> s3 <- func3(s2,...) # same here >> } >> >> try(Big_function(parameters)) >> >> HTH, >> >> Thierry >> >> PS Please include the mailing list in your replies. >> >> ---------------------------------------------------------------------------- >> ir. Thierry Onkelinx >> Instituut voor natuur- en bosonderzoek / Research Institute for Nature and >> Forest >> Cel biometrie, methodologie en kwaliteitszorg / Section biometrics, >> methodology and quality assurance >> Gaverstraat 4 >> 9500 Geraardsbergen >> Belgium >> tel. + 32 54/436 185 >> thierry.onkel...@inbo.be >> www.inbo.be >> >> To call in the statistician after the experiment is done may be no more than >> asking him to perform a post-mortem examination: he may be able to say what >> the experiment died of. >> ~ Sir Ronald Aylmer Fisher >> >> The plural of anecdote is not data. >> ~ Roger Brinner >> >> The combination of some data and an aching desire for an answer does not >> ensure that a reasonable answer can be extracted from a given body of data. >> ~ John Tukey >> >> -----Oorspronkelijk bericht----- >> Van: Nir Shachaf [mailto:nirshac...@gmail.com] >> Verzonden: donderdag 13 augustus 2009 11:37 >> Aan: ONKELINX, Thierry >> Onderwerp: Re: [R] un run run... >> >> Thierry hi, >> >> Most grateful for your detailed reply. >> >> The specific conditions that I am working with are that every function that >> I call can generate an unexpected error: So that using your solution would >> result in nested "if - then" statements... >> >> My data looks similar to this: >> >> s1 <- func1(some params) # can generate errors >> s2 <- func2(s1,...) # yes she can aswell >> s3 <- func3(s2,...) # same here >> ... >> >> then the whole thing repeats with diffrent parameters ... >> >> etc. >> >> >> Ideally, I would have set "options(error = expression("some command"))" and >> have "some command" advance the execution pointer of "source" by one step, >> which would eventually get me to a working line and continue script run. >> >> Any hint? >> >> Thanks once more, >> Nir >> >> On Thu, Aug 13, 2009 at 12:13 PM, ONKELINX, >> Thierry<thierry.onkel...@inbo.be> wrote: >>> Here is an example in pseudo code. >>> >>> Instead of >>> >>> Object <- function that can generate error Other things to do >>> >>> Do something like >>> >>> Object <- try(function that can generate error) >>> if(class(Object) == "try-error"){ >>> things to do when an error occures } else { >>> other things to do >>> } >>> >>> HTH, >>> >>> Thierry >>> >>> ---------------------------------------------------------------------- >>> -- >>> ---- >>> ir. Thierry Onkelinx >>> Instituut voor natuur- en bosonderzoek / Research Institute for Nature >>> and Forest Cel biometrie, methodologie en kwaliteitszorg / Section >>> biometrics, methodology and quality assurance Gaverstraat 4 9500 >>> Geraardsbergen Belgium tel. + 32 54/436 185 thierry.onkel...@inbo.be >>> www.inbo.be >>> >>> To call in the statistician after the experiment is done may be no >>> more than asking him to perform a post-mortem examination: he may be >>> able to say what the experiment died of. >>> ~ Sir Ronald Aylmer Fisher >>> >>> The plural of anecdote is not data. >>> ~ Roger Brinner >>> >>> The combination of some data and an aching desire for an answer does >>> not ensure that a reasonable answer can be extracted from a given body >>> of data. >>> ~ John Tukey >>> >>> -----Oorspronkelijk bericht----- >>> Van: r-help-boun...@r-project.org >>> [mailto:r-help-boun...@r-project.org] >>> Namens Nir Shachaf >>> Verzonden: donderdag 13 augustus 2009 11:00 >>> Aan: r-help@r-project.org >>> Onderwerp: [R] un run run... >>> >>> Hi All, >>> >>> I am running an Rscript with a bunch of algorithms that are UNSTABLE >>> under some parameter settings. >>> >>> At a certain point one of them sends error massage and my whole run >>> STOPS! >>> >>> What I would like is to save the error massage in some file or >>> variable and carry on to the next command line without stopping this run... >>> >>> Any help or ideas would be welcome, please, with a concrete example >>> (not just - "have you thought of using 'tryCatch' etc.). >>> >>> Thanks all! >>> Nir >>> >>> ______________________________________________ >>> R-help@r-project.org mailing list >>> https://stat.ethz.ch/mailman/listinfo/r-help >>> PLEASE do read the posting guide >>> http://www.R-project.org/posting-guide.html >>> and provide commented, minimal, self-contained, reproducible code. >>> >>> Dit bericht en eventuele bijlagen geven enkel de visie van de >>> schrijver weer en binden het INBO onder geen enkel beding, zolang dit >>> bericht niet bevestigd is door een geldig ondertekend document. The >>> views expressed in this message and any annex are purely those of the >>> writer and may not be regarded as stating an official position of >>> INBO, as long as the message is not confirmed by a duly signed document. >>> >> >> Dit bericht en eventuele bijlagen geven enkel de visie van de schrijver weer >> en binden het INBO onder geen enkel beding, zolang dit bericht niet >> bevestigd is >> door een geldig ondertekend document. The views expressed in this message >> and any annex are purely those of the writer and may not be regarded as >> stating >> an official position of INBO, as long as the message is not confirmed by a >> duly >> signed document. >> > > ______________________________________________ > R-help@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. > -- Jim Holtman Cincinnati, OH +1 513 646 9390 What is the problem that you are trying to solve? ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.