xps-package               package:xps               R Documentation

_x_p_s _P_a_c_k_a_g_e _O_v_e_r_v_i_e_w

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

     xps Package Overview

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

     Important data classes: 'SchemeTreeSet', 'DataTreeSet',
     'ExprTreeSet', 'CallTreeSet', 'FilterTreeSet', 'AnalysisTreeSet'.
     Full help on methods and associated functions is available from
     within class help pages.

     Additional data classes: 'ProjectInfo', 'PreFilter', 'UniFilter'.

     The package handles pre-processing, normalization, filtering and
     analysis of Affymetrix GeneChip expression arrays, including
     GeneChip exon array systems (Exon 1.0 ST) and gene array systems
     (Gene 1.0 ST) on computers with 1-2 GB RAM only. It imports
     Affymetrix .CDF, .CLF, .PGF and .CEL  as well as annotation files,
     and computes e.g. RMA, MAS5, DABG-calls. It is an R wrapper to XPS
     (eXpression Profiling System), which  is based on ROOT, an
     object-oriented framework developed at CERN.  Thus, the prior
     installation of ROOT is a prerequisite for the  usage of this
     package, see the README file. However, no knowledge of ROOT is
     required. ROOT is licensed under LGPL and can be downloaded from
     <URL: http://root.cern.ch>.

_A_u_t_h_o_r(_s):

     Christian Stratowa cstrato@aon.at

