Usually (that is, not limited in R language), when error occurs in try, stacks are rollbacked, so the variables defined in try no longer exists after calling try.
One non-elegant solution is: fit<-NULL try ( (fit = lm(y~x, data = data_fitting)), silent =T) if(!is.null(fit)){ coeffs = as.list(coef(fit)) ## other subsequent processes } On 1/23/07, lalitha viswanath <[EMAIL PROTECTED]> wrote: > Hi > Thanks for your response. > However I seem to be doing something wrong regarding > the try block resulting in yet another error described > below. > > I have a function that takes in a file name and > does the fit for the data in that file. > Hence based on your input, I tried > > try ( (fit = lm(y~x, data = data_fitting)), silent = > T); > > > I left the subsequent lines of my code unchanged. > coeffs = as.list(coef(fit); > lambda = exp(coeffs$x).... > > After the change using try, when I tried to resume > processing under R as follows > source("fitting.R") > for filename in list { process(filename); } > It says "Cannot find object "fit" "...(in the line > trying to get the coefficients...) > > Am I closing the try block in the wrong place? > This function does some post processing on the > coefficients returned by coef(fit), puts them in a > list and sends it to another function. > (i.e. around 6 lines of code after the call to fit). > Thanks > Lalitha > --- Andreas Hary <[EMAIL PROTECTED]> wrote: > > > Look at ?try > > > > Your code will probably need to be something like > > the following: > > > > fit <- list() > > for(fileId in 1:n){ > > try(fit[i] <- lm(formula,data=???,...), silent=F) > > #or silent=T if you would like to be made aware > > of problems > > } > > > > Best wishes, > > > > Andreas > > > > > > > > > > lalitha viswanath wrote: > > > Hi > > > I am a newbie to R and am using the lm function > > to > > > fit my data. > > > This optimization is to be performed for around > > 45000 > > > files not all of which lend themselves to > > > optimization. Some of these will and do crash. > > > > > > However, How do I ensure that the program simply > > goes > > > to the next file in line without exiting the code > > with > > > the error > > > "Error in lm.fit(x, y, offset = offset, > > singular.ok = > > > singular.ok, ...) : > > > NA/NaN/Inf in foreign function call (arg > > 4)" > > > everytime it encounters troublesome data? > > > > > > I would greatly appreciate your input as it would > > > avoid me having to manually type > > > for fileId in (c(4351:46000)) { ... } > > > for fileId in (c(5761:46000)) { ... }, etc... > > > > > > Thanks > > > Lalitha > > > > > > > > > > > > > > > ____________________________________________________________________________________ > > > Now that's room service! Choose from over 150,000 > > hotels > > > > > > ______________________________________________ > > > R-help@stat.math.ethz.ch 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. > > > > > > > -- > > ============================= > > Andreas Hary > > Flat 5, 70 Finsbury Park Road > > Lond, N4 2JX, UK > > > > Email: [EMAIL PROTECTED] > > Mobile: 07906 860 987 > > > > > > > ____________________________________________________________________________________ > Want to start your own business? > > ______________________________________________ > R-help@stat.math.ethz.ch 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. > ______________________________________________ R-help@stat.math.ethz.ch 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.