columnDescriptions         package:GEOmetadb         R Documentation

_G_e_t _c_o_l_u_m_n _d_e_s_c_r_i_p_t_i_o_n_s _f_o_r _t_h_e _G_E_O_m_e_t_a_d_b _d_a_t_a_b_a_s_e

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

     Searching the GEOmetadb database requires a bit of knowledge about
     the structure of the database and column descriptions. This
     function returns those column descriptions for all columns in all
     tables in the database.

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

     columnDescriptions(sqlite_db_name='GEOmetadb.sqlite')

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

sqlite_db_name: The filename of the GEOmetadb sqlite database file

_V_a_l_u_e:

     A three-column data.frame including TableName, FieldName, and
     Description.

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

     Sean Davis <sdavis2@mail.nih.gov>

_R_e_f_e_r_e_n_c_e_s:

     http://meltzerlab.nci.nih.gov/apps/geo

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

     if(file.exists('GEOmetadb.sqlite')) {
       columnDescriptions()[1:5,]
     } else {
       print("You will need to usethe getSQLiteFile() function to get a copy
     of the SQLite database file before this example will work")
     }

