golub                 package:hopach                 R Documentation

_G_e_n_e _e_x_p_r_e_s_s_i_o_n _d_a_t_a_s_e_t _f_r_o_m _G_o_l_u_b _e_t _a_l. (_1_9_9_9)

_D_e_s_c_r_i_p_t_i_o_n:

     Gene expression data (3051 genes and 38 tumor mRNA samples) from
     the leukemia microarray study of Golub et al. (1999).
     Pre-processing was done as described in Dudoit et al. (2002). The
     R code for pre-processing is available in the file golub.R in the
     docs directory.

_U_s_a_g_e:

     data(golub)

_V_a_l_u_e:

   golub: matrix of gene expression levels for the 38 tumor mRNA
          samples, rows correspond to genes (3051 genes) and columns to
          mRNA samples.

golub.cl: numeric vector indicating the tumor class, 27 acute
          lymphoblastic leukemia (ALL) cases (code 0) and 11 acute
          myeloid leukemia (AML) cases (code 1). 

golub.gnames: a matrix containing the names of the 3051 genes for the
          expression matrix 'golub'. The three columns correspond to
          the gene 'index', 'ID', and 'Name', respectively. 

_S_o_u_r_c_e:

     Golub et al. (1999). Molecular classification of cancer: class
     discovery and class prediction by gene expression monitoring,
     _Science_, Vol. 286:531-537.
      http://www-genome.wi.mit.edu/MPR/ .

_R_e_f_e_r_e_n_c_e_s:

     S. Dudoit, J. Fridlyand, and T. P. Speed (2002). Comparison of
     discrimination methods for the  classification of tumors using
     gene expression data. _Journal of the American Statistical
     Association_, Vol. 97, No. 457, p. 77-87.

