paperLen             package:CoCiteStats             R Documentation

_F_i_n_d _t_h_e _n_u_m_b_e_r _o_f _p_a_p_e_r_s _c_i_t_e_d

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

     The set of papers that cite the input Entrez Gene identifiers are
     found, and for each of these the number of genes cited in that
     paper is computed and returned.

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

     paperLen(x)

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

       x: A vector of Entrez Gene identifiers. 

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

     This function first finds the set of unique PMIDs associated with
     the input set of Entrez Gene IDS. Then for each PMID it finds the
     number of Entrez Gene identifiers associated with that paper. The
     function uses different sets of variable mappings from the
     'org.Hs.eg.db' package.

     If 'x' is missing then all Entrez gene identifiers in the
     org.Hs.egPMID are used.

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

 counts : For each paper the number of Entrez Gene identifiers referred
          to.

 papers : A list of the same length as 'x', each element contains the
          papers that refer to the corresponding Entrez Gene
          identifier.

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

     R. Gentleman

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

     'twTStats'

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

       ans = paperLen(c("10", "1001"))
       ans$counts
       ans$papers

