Hi David et al, Thanks for showing the pointers. With your approach, I see the "temp.zip" file in my working folder.
However still I could not extract the data within it. I tried using unzip() function, however not really going through : > unzip("temp.zip") Warning message: In unzip("temp.zip") : error 1 in extracting from zip file When I try to access the link "https://npscra.nsdl.co.in/download.php?path=download/&filename=NAV_File_23122016.zip" manually, then download the zip file and then unzip it, I get a file called "NAV_File_23122016.out". Which next I open in excel and get all the data. I was just trying to perform similar task, however through R, so that I can load data automatically directly from Web. Any Idea please. I am using below version of R (I know this is quite old version, however I am not currently in a position to upgrade my Macbook) > R.Version() $platform [1] "x86_64-apple-darwin10.8.0" $arch [1] "x86_64" $os [1] "darwin10.8.0" $system [1] "x86_64, darwin10.8.0" $status [1] "" $major [1] "3" $minor [1] "2.1" $year [1] "2015" $month [1] "06" $day [1] "18" $`svn rev` [1] "68531" $language [1] "R" $version.string [1] "R version 3.2.1 (2015-06-18)" $nickname [1] "World-Famous Astronaut" On Mon, Dec 26, 2016 at 7:18 AM, David Winsemius <dwinsem...@comcast.net> wrote: > >> On Dec 25, 2016, at 3:46 PM, Gábor Csárdi <csardi.ga...@gmail.com> wrote: >> >> Your R build does not support HTTPS. >> >> I suggest that you use the curl package if you can. HTTP support in >> base R is very limited currently. > > I generally use the downloader package. It sets up the call to download.file > so that it succeeds with https URLs. > > > install.packages("downloader", dependencies=TRUE) > trying URL > 'http://cran.cnr.Berkeley.edu/bin/macosx/mavericks/contrib/3.3/downloader_0.4.tgz' > Content type 'application/x-gzip' length 19459 bytes (19 KB) > ================================================== > downloaded 19 KB > > > The downloaded binary packages are in > > /var/folders/68/vh2f8kzn09j8954r6q9100yh0000gn/T//Rtmpq8DVG4/downloaded_packages >> library(downloader) >> help(pac=downloader) > starting httpd help server ... done >> download("https://npscra.nsdl.co.in/download.php?path=download/&filename=NAV_File_23122016.zip","temp.zip") > > # Requires both a source and destination file name. > > trying URL > 'https://npscra.nsdl.co.in/download.php?path=download/&filename=NAV_File_23122016.zip' > Content type 'application/octet-stream' length 1228 bytes > ================================================== > downloaded 1228 bytes > > -- > David. >> >> Gabor >> >> >> >> On Sun, Dec 25, 2016 at 10:37 PM, Christofer Bogaso >> <bogaso.christo...@gmail.com> wrote: >>> Hi again, >>> >>> I posted this in general R thread, however it is suggested this group >>> since I am using MAC OS 10.7.5. >>> >>> I was following the instruction available in >>> "http://stackoverflow.com/questions/3053833/using-r-to-download-zipped-data-file-extract-and-import-data" >>> to download data from Internet contained in a zip file from the >>> address : >>> >>> https://npscra.nsdl.co.in/download.php?path=download/&filename=NAV_File_23122016.zip >>> >>> However when I tried to follow the instruction I am facing below error : >>> >>>> temp <- tempfile() >>>> download.file("https://npscra.nsdl.co.in/download.php?path=download/&filename=NAV_File_23122016.zip",temp) >>> Error in >>> download.file("https://npscra.nsdl.co.in/download.php?path=download/&filename=NAV_File_23122016.zip", >>> : >>> unsupported URL scheme >>> >>> Can someone here please tell me what went wrong in above? >>> >>> Highly appreciate your feedback. >>> >>> Thanks for your time. >>> >>> _______________________________________________ >>> R-SIG-Mac mailing list >>> R-SIG-Mac@r-project.org >>> https://stat.ethz.ch/mailman/listinfo/r-sig-mac >> >> _______________________________________________ >> R-SIG-Mac mailing list >> R-SIG-Mac@r-project.org >> https://stat.ethz.ch/mailman/listinfo/r-sig-mac > _______________________________________________ R-SIG-Mac mailing list R-SIG-Mac@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-mac