listFilters             package:biomaRt             R Documentation

_l_i_s_t_s _t_h_e _f_i_l_t_e_r_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:

     Filters are what we use as inputs for a biomaRt query. For
     example, if we want to retrieve all entrezgene identifiers on
     chromosome X, 'chromosome' will be the filter, with corresponding
     value X.

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

     listFilters(mart, what = c("name", "description"),
                        group = "DEFUNCT")

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

    mart: object of class 'Mart' created using the 'useMart' function

    what: character vector indicating what information to display about
          the available filters.  Valid values are 'name',
          'description', 'options', 'fullDescription', 'filters',
          'type', 'operation', 'filters8', 'filters9'.

   group: defunct. If you need advice how to replace that
          functionality, please contact the package maintainer for
          advice.

_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()){
     mart = useMart("ensembl", dataset="hsapiens_gene_ensembl")
     listFilters(mart)
     }

