chrid-methods          package:rtracklayer          R Documentation

_G_e_t_t_i_n_g _c_h_r_o_m_o_s_o_m_e _i_d_s

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

     Methods for creating and getting chromosome ids.

_M_e_t_h_o_d_s:

     The following methods are defined by 'rtracklayer'. 


     _o_b_j_e_c_t = "_t_r_a_c_k_S_e_t" Gets the chromosomes of the features as a
          'chrid' instance. 

     _o_b_j_e_c_t = "_c_h_a_r_a_c_t_e_r" Coerces vector of string chromosome
          identifiers to a 'chrid' instance. 

     _o_b_j_e_c_t = "_A_N_Y" Attempts to coerce 'object' by first coercing it to
          a character vector. 

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

     Subset 'trackSet' instances by chromosome identifier with
     '[.trackSet'

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

       chrid("chr22")
       track <- import(system.file("tests", "bed.wig", package = "rtracklayer"))
       chrid(track)

