Thank you guys for the response. I'm trying to download the last ten years of meteorology data from a weather station in Livermore from the URL: ftp://ftp.ncdc.noaa.gov/pub/data/noaa/2015/724927-23285-2015.gz The Livermore station code is 724927-23285. If I wanted to download data from 2005, the URL would be: ftp://ftp.ncdc.noaa.gov/pub/data/noaa/2005/724927-23285-2005.gz
Once I download the data into a temporary file, I want to unzip it and store it into another directory where I can access it. Also, why are there 2015 indices instead of just 10 when I'm only looping through 2005:2015? Thanks, Alexandra On Thu, Feb 5, 2015 at 3:11 AM, Jon Skoien <jon.sko...@jrc.ec.europa.eu> wrote: > In addition to following Jim's suggestion, you should probably also use > full.names = TRUE, otherwise you will try to open a connection to files in > your current directory, not in tmpdir. > Another thing is that the unzipped files appear irregular with respect to > columns, so read.table might not work too well. > > Jon > > > On 2/5/2015 11:30 AM, jim holtman wrote: > >> try taking the quotes off of 'files' >> >> >> Jim Holtman >> Data Munger Guru >> >> What is the problem that you are trying to solve? >> Tell me what you want to do, not how you want to do it. >> >> On Wed, Feb 4, 2015 at 5:24 PM, Alexandra Catena <amc5...@gmail.com> >> wrote: >> >> Hi All, >>> >>> I need to loop through and download the past 10 years of met data to a >>> temporary directory. I then need to unzip it and place it into another >>> directory. >>> >>> >>> year = (2005:2015) >>> >>> for (i in year) >>> tmpdir = tempdir() >>> file[i] = file.path(tmpdir, sprintf('724927-23285-%4i.gz', i)) >>> url = sprintf(' >>> ftp://ftp.ncdc.noaa.gov/pub/data/noaa/%4i/724927-23285-%4i.gz', i, i) >>> #file = basename(url) >>> download.file(url, file[i]) >>> files = dir(tmpdir, '*.gz', full.names=FALSE) >>> read.table(gzfile('files')) >>> >>> >>> >>> 'file' returns 2015 indices with "/tmp/RtmpKvB4Wz/724927-23285-2015.gz" >>> next to 2015. and files returns 724927-23285-2015.gz. However, when I >>> try >>> to unzip the gz file using the last line, it says it cannot open the >>> connection and the probable reason is that there is no such file or >>> directory. >>> >>> >>> >>> Thanks, >>> Alexandra >>> >>> [[alternative HTML version deleted]] >>> >>> ______________________________________________ >>> R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see >>> 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. >>> >>> >> [[alternative HTML version deleted]] >> >> ______________________________________________ >> R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see >> 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. >> >> > -- > Jon Olav Skøien > Joint Research Centre - European Commission > Institute for Environment and Sustainability (IES) > Climate Risk Management Unit > > Via Fermi 2749, TP 100-01, I-21027 Ispra (VA), ITALY > > jon.sko...@jrc.ec.europa.eu > Tel: +39 0332 789205 > > Disclaimer: Views expressed in this email are those of the individual and > do not necessarily represent official views of the European Commission. > > [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see 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.