queryAE             package:ArrayExpress             R Documentation

_X_M_L _q_u_e_r_y _o_f _t_h_e _A_r_r_a_y_E_x_p_r_e_s_s _r_e_p_o_s_i_t_o_r_y

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

     'queryAE' queries the ArrayExpress database with keywords and give
     a dataframe with  ArrayExpress identifiers and related
     information, as an output.

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

     queryAE(keywords = NULL, species = NULL)

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

keywords: the keyword(s) of interest. To use several words, they must
          be separated by a "+" as shown in the examples. 

 species: the specie(s) of interest.

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

     ' A dataframe with all the ArrayExpress dataset identifiers which
     correspond to the query in the first column. The following columns
     contain information about these datasets,  such as the number of
     raw files, the number of data processed,  the release date on the
     database, the pubmed ID, the species,  the experiment design and
     the experimental factors.'

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

     Audrey Kauffmann  Maintainer: <audrey@ebi.ac.uk>

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

     'ArrayExpress', 'getAE'

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

     ## To retrieve all the identifiers of pneumonia data sets
     pneumo = queryAE(keywords = "pneumonia")

     ## To retrieve all the identifiers of pneumonia data sets studied in human
     pneumoHS = queryAE(keywords = "pneumonia", species = "homo+sapiens")

