loadFromUrl            package:AnnBuilder            R Documentation

_F_u_n_c_t_i_o_n_s _t_o _l_o_a_d _f_i_l_e_s _f_r_o_m _a _w_e_b _s_i_t_e

_D_e_s_c_r_i_p_t_i_o_n:

     Given an url, these functions download a file from a given web
     site and unzip the file if it is compressed.

_U_s_a_g_e:

     loadFromUrl(srcUrl, destDir = "")
     validateUrl(srcUrl)
     unzipFile(fileName, where = file.path(.path.package("SAGElyzer"),
     "data"), isgz = FALSE)

_A_r_g_u_m_e_n_t_s:

  srcUrl: `srcUrl' a character string for the url of the file to be
          downloaded

 destDir: `destDir' a character string for a loacal directory where the
          file to be downloaded will be saved

   where: `where' same as destDir

    isgz: `isga' a boolean indicating whether the downloaded file is a
          gz file

fileName: `fileName' a character string for the name of a file

_D_e_t_a_i_l_s:

     These functions are used by various objects in package pubRepo to
     download data files from a web site. If the file is compressed,
     decompressing will be applied and the path for the decompressed
     file will be returned.

     `validateUrl' will terminate the process if an invalid url is
     passed.

     `unzipFile' decompress the file passed as fileName.

_V_a_l_u_e:

     `loadFromUrl' returns a character string for the name of the file
     saved locally.

_N_o_t_e:

     The functions are part of the Bioconductor project at Dana-Farber
     Cancer Institute to provide Bioinformatics functionalities through
     R

_A_u_t_h_o_r(_s):

     Jianhua Zhang

_S_e_e _A_l_s_o:

     `pubRepo-class'

_E_x_a_m_p_l_e_s:

     # Get a dummy data file from Bioconductor web site
     data <-
     loadFromUrl("http://www.bioconductor.org/datafiles/wwwsources/Tll_tmpl.gz",
     destDir = "")
     unlink(data)