moe430aCHR              package:moe430a              R Documentation

_M_a_p _M_a_n_u_f_a_c_t_u_r_e_r _I_D_s _t_o _C_h_r_o_m_o_s_o_m_e_s

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

     moe430aCHR is an R environment that provides mappings between a
     manufacturer identifier and the chromosome that contains the gene
     of interest.

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

     Each manufacturer identifier maps to a vector of chromosomes. Due
     to inconsistencies that may exist at the time the environment was
     built, the vector may contain more than one chromosome (e.g., the
     identifier may map to more than one chromosome). If the
     chromosomal location is unknown, the vector will contain an 'NA'.

     Mappings were based on data provided by:

     Entrez Gene:<URL: ftp://ftp.ncbi.nlm.nih.gov/gene/DATA/>. Built:
     Source data downloaded from Entrez Gene on Mon Sep 25 19:46:05
     2006

     Package built: Mon Sep 25 20:11:15 2006

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

             # Convert to a list
             xx <- as.list(moe430aCHR)
             # Remove probe identifiers that do not map to any CHRLOC
             xx <- xx[!is.na(xx)]
             if(length(xx) > 0){
                 # Get the chromosome number for the first five probes
                 xx[1:5]
                 # Get the first one
                 xx[[1]]
             }

