annaffyMAP              package:annaffy              R Documentation

_S_u_b_s_e_t _o_f _a_n_n_o_t_a_t_i_o_n _d_a_t_a _f_i_l_e _f_o_r _M_A_P _i_n _t_h_e _h_g_u_9_5_a_v_2 _p_a_c_k_a_g_e

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

     This is an R environment (hash table like) object containing key
     and value pairs for the mappings between probe identifiers (key)
     and cytoband locations (value) on a chromosome. Keys can be
     accessed using ls(name of the environment) and values using
     get(key, name of the environment) or mget(keys, name of the
     environment). Values are vectors of length 1. Mappings between
     probe ids and cytoband locations were obtained through their
     mappings to LocusLink ids. NA is assigned to probe identifiers
     that can not be mapped to any cytoband at this time.

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

     Mappings were based on data provided by LocusLink

     Source data built: LocusLink built: January 13, 2004.<URL:
     ftp://ftp.ncbi.nih.gov/refseq/LocusLink/LL_tmpl.gz>. Package
     built: Wed Jan 14 22:11:05 2004 Contains 250 randomly selected
     probes

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

     <URL: ftp://ftp.ncbi.nih.gov/refseq/LocusLink/LL_tmpl.gz>

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

             require("annotate") || stop("annotate unavailable")
             xx <- ls(env = annaffyMAP)
             if(length(xx) > 0){
                     # Using get for value of the first key
                     get(xx[1], annaffyMAP )
                     #Using mget for a few keys
                     if(length(xx) >= 3){
                             mget(xx[1:3], annaffyMAP, ifnotfound=NA )
                             #Using lookUp of annotate(> 1.3.4)
                             lookUp(xx[1:3],"annaffy","MAP")
                     }
             }

