subXString            package:Biostrings            R Documentation

_F_a_s_t _s_u_b_s_t_r_i_n_g _e_x_t_r_a_c_t_i_o_n

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

     Functions for fast substring extraction.

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

       subXString(x, start=NA, end=NA, length=NA)
       ## S4 method for signature 'XString':
       substr(x, start=NA, stop=NA)
       ## S4 method for signature 'XString':
       substring(text, first=NA, last=NA)

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

       x: An XString object for 'subXString'. A character vector, an
          XStringViews, XString, or MaskedXString object for 'substr'
          or 'substring'. 

   start: A numeric vector. 

     end: A numeric vector. 

  length: A numeric vector. 

    stop: A numeric vector. 

    text: A character vector, an XStringViews or an XString object. 

   first: A numeric vector. 

    last: A numeric vector. 

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

     'subXString' is deprecated in favor of 'subseq'.

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

     An XString object of the same base type as 'x' for 'subXString'.

     A character vector for 'substr' and 'substring'.

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

     'subseq', 'letter', XString-class, XStringViews-class

