untar != gunzip --------------------------------------------------------------------------- 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.
Prof Brian Ripley <rip...@stats.ox.ac.uk> wrote: >On 03/05/2013 08:31, Hakim Abdi wrote: >> Dear List, >> >> I have a list of 600+ *.gz files that I would like to extract and >read the >> geotiffs contained within them. I tried using the untar() function to >> simplify this task but I am stumped by an error. I've combed the >Internet >> for a solution without luck. The details are below, and any help in >solving >> this matter is appreciated. > >Those are most likely not tar files. What does file (the command-line >program contained in Rtools) say they are? > >> >>> files = list.files(path = "J:/GIMMS/NDVI", pattern = "data.tif.gz", >> all.files = TRUE, full.names = TRUE, recursive = TRUE, ignore.case = >TRUE, >> include.dirs = TRUE) >> >>> lapply(files, untar) >> Error in rawToChar(block[seq_len(ns)]) : >> embedded nul in string: 'II*\0ÃŒ <\001´ >> >\0\0`G\0\0\fn\0\0¸â€\0\0d»\0\0\020â\0\0¼\b\001\0h/\001\0\024V\001\0À|\001\0l£\001\0\030Ê\001\0Äð\001\0p\027\002\0\034>\002\0Èd\002\0t‹\002\0 >> ²\002\0ÌØ\002\0xÿ\002\0$&\003\0ÃL\003\0|s\003' >> >>> untar(files[1]) >> Error in rawToChar(block[seq_len(ns)]) : >> embedded nul in string: 'II*\0ÃŒ <\001´ >> >\0\0`G\0\0\fn\0\0¸â€\0\0d»\0\0\020â\0\0¼\b\001\0h/\001\0\024V\001\0À|\001\0l£\001\0\030Ê\001\0Äð\001\0p\027\002\0\034>\002\0Èd\002\0t‹\002\0 >> ²\002\0ÌØ\002\0xÿ\002\0$&\003\0ÃL\003\0|s\003' >> >>> >untar("J:/GIMMS/NDVI/1981/81aug15a.n07-VIg/81aug15a.n07-VIg_data.tif.gz") >> Error in rawToChar(block[seq_len(ns)]) : >> embedded nul in string: 'II*\0ÃŒ <\001´ >> >\0\0`G\0\0\fn\0\0¸â€\0\0d»\0\0\020â\0\0¼\b\001\0h/\001\0\024V\001\0À|\001\0l£\001\0\030Ê\001\0Äð\001\0p\027\002\0\034>\002\0Èd\002\0t‹\002\0 >> ²\002\0ÌØ\002\0xÿ\002\0$&\003\0ÃL\003\0|s\003' >> >>> traceback() >> 3: rawToChar(block[seq_len(ns)]) >> 2: untar2(tarfile, files, list, exdir) >> 1: untar(files[1]) >> >>> sessionInfo() >> R version 2.15.2 (2012-10-26) >> Platform: x86_64-w64-mingw32/x64 (64-bit) >> >> locale: >> [1] LC_COLLATE=English_United States.1252 LC_CTYPE=English_United >> States.1252 LC_MONETARY=English_United States.1252 LC_NUMERIC=C >> >> [5] LC_TIME=English_United States.1252 >> >> attached base packages: >> [1] stats graphics grDevices utils datasets methods base >> >> >> >> _______________________________________ >> >> Hakim Abdi >> Doctoral Student >> >> Physical Geography and Ecosystem Science >> Lund University >> Sölvegatan 12, 223 62 Lund, Sweden >> >> Office: +46 (0) 46 2223132 >> Mobile: +46 (0) 73 9300116 >> >> Email: hakim.a...@nateko.lu.se >> >> [[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.