listAttributes            package:biomaRt            R Documentation

_l_i_s_t_s _t_h_e _a_t_t_r_i_b_u_t_e_s _a_v_a_i_l_a_b_l_e _i_n _t_h_e _s_e_l_e_c_t_e_d _d_a_t_a_s_e_t

_D_e_s_c_r_i_p_t_i_o_n:

     Attributes are the outputs of a biomaRt query, they are the
     information we want to retrieve.  For example if we want to
     retrieve all entrez gene identifiers of genes located on
     chromosome X, entrezgene will be the attribute we use in the
     query.  The listAttributes function lists the available attributes
     in the selected dataset

_U_s_a_g_e:

     listAttributes(mart, page,what = c("name","description"), group, category, showGroups = FALSE)

_A_r_g_u_m_e_n_t_s:

    mart: object of class Mart created using the useMart function

    page: Show only the attributes that belong to the specified
          attribute page.

    what: vector of types of information about the attributes that need
          to be displayed.  Can have values like name, description,
          fullDescription, page

   group: Availability of group argument is pending on availability
          from BioMart web service.  Currently this argument can not be
          used

category: Category is now replaced by page to better comply with the
          BioMart suite http://www.biomart.org

showGroups: Availability of showGroups argument is pending on
          availability from BioMart web service.  Currently this
          argument can not be used

_A_u_t_h_o_r(_s):

     Steffen Durinck, http://www.stat.berkeley.edu/~steffen

_E_x_a_m_p_l_e_s:

     if(interactive()){
     ensembl = useMart("ensembl", dataset="hsapiens_gene_ensembl")
     listAttributes(ensembl)
     }

