You forgot to follow the posting guide and tell us what operating system you are using (sessionInfo), but I am going to guess that you are on Windows where the colon (":") is an illegal symbol in filenames. Try formatting the time explicitly in the conversion to character using the format string definitions found in ?strptime in a format that doesn't include colons. --------------------------------------------------------------------------- Jeff Newmiller The ..... ..... Go Live... DCN:<jdnew...@dcn.davis.ca.us> Basics: ##.#. ##.#. Live Go... Live: OO#.. Dead: OO#.. Playing Research Engineer (Solar/Batteries O.O#. #.O#. with /Software/Embedded Controllers) .OO#. .OO#. rocks...1k --------------------------------------------------------------------------- Sent from my phone. Please excuse my brevity.
Vincy Pyne <vincy_p...@yahoo.ca> wrote: >Dear R helpers, > >I am using Beta distribution to generate the random no.s (recovery >rates in my example). However, each time I need to save these random >no.s in a csv format. To distinguish different csv files, one way I >thought was use of Sys.time in the file name. My code is as follows - > ># My code > >rr = rbeta(25, 6.14, 8.12) > >lgd = 1 - mean(rr) > >write.csv(data.frame(recovery_rates = rr), file = >paste("recovery_rates_at_", Sys.time(), ".csv", sep = ""), row.names = >FALSE) > > >However, I get following error - > >Error in file(file, ifelse(append, "a", "w")) : � cannot open the >connection >In addition: Warning message: In file(file, ifelse(append, "a", "w")) : >cannot open file 'recovery_rates_at_2012-07-04 1:14:05.csv': Invalid >argument > > >If instead of Sys.time, I use some other variable e.g. lgd as > >write.csv(data.frame(recovery_rates = rr), paste('rates_',lgd,'.csv', >sep = ""), row.names = FALSE) > >I am able to store these simulated recovery rates in different files. >But I need to use Sys.time in my csv file name. (or is there any other >way of writing these csv files so that files don't get over-written). > >Kindly guide. > >Regards and thanking in advance > >Vincy > > > [[alternative HTML version deleted]] > >______________________________________________ >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. ______________________________________________ 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.