dbGetExperimentInfo           package:maDB           R Documentation

_L_i_s_t _i_n_f_o_r_m_a_t_i_o_n _a_b_o_u_t _a_n _e_x_p_e_r_i_m_e_n_t _f_r_o_m _a _d_a_t_a_b_a_s_e.

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

     'dbGetExperimentInfo' This function lists all experiments that are
     stored into a database with the 'publishToDB' function, or lists
     all properties from a particular experiment.

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

     dbGetExperimentInfo(Con,exp.title)

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

     Con: A connection object (create it with the dbConnect.PgSQL.conn
          function from the package RdbiPgSQL)

exp.title: The experiment title (name) from the experiment which
          properties should be listet. If nothing is submitted a list
          with all experiments that are stored in the database is
          displayed.

_D_e_t_a_i_l_s:

     This function collects information about the specified experiment
     over all tables and lists this information. A table is returned,
     that contains all primary keys or foreign keys with wich all data
     can be retrieved for the particular experiment from the various
     tables. This tables are:

_e_x_p_e_r_i_m_e_n_t_s Primary information about the experiment

_a_r_r_a_y_s the arrays od GeneChips which where used in the experiment

_s_i_g_n_a_l__c_h_a_n_n_e_l_s in two color micro arrays two signal channels exist and
     therefore two entries in the signal_channels table reference to
     one entry in the arrays table. For Affymetrix GeneChips the
     reference is one to one.

_e_x_p__v_a_l_u_e_s this table contains all the expression values from the
     corresponding signal channels of the experiment. The reference to
     the signal_channels table is established by the signal_channels_fk
     column in the exp_values table.

_s_a_m_p_l_e_s Each entry in this table references to one or more entries in
     the signal_channels table. This table contains information about
     the samples that were hybridized onto the arrays.

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

     Johannes Rainer

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

_S_e_e _A_l_s_o:

     'dbGetAnnotation' 'publishToDB' 'EexprSet-class'

