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 <amc5981 at
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 at 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 at 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 Sk?ien
Joint Research Centre - European Commission
Institute for Environment and Sustainability (IES)
Climate Risk Management Unit
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jon.skoien at jrc.ec.europa.eu
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