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  exon
     array systems (Exon 1.0 ST: core, extended, full probesets) and
     gene array  systems (Gene 1.0 ST) on computers with 1 GB RAM only.
     It imports Affymetrix  .CDF, .CLF, .PGF and .CEL as well as
     Affymetrix annotation files, and computes e.g. RMA, MAS5, FARMS,
     DFW, MAS5-calls, DABG-calls, I/NI-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

