twilight.getmatrix         package:twilight         R Documentation

_I_n_t_e_r_n_a_l _f_u_n_c_t_i_o_n _t_o _e_x_t_r_a_c_t _t_h_e _g_e_n_e _e_x_p_r_e_s_s_i_o_n _m_a_t_r_i_x _f_r_o_m _a_n _e_x_p_r_e_s_s_i_o_n _s_e_t

_D_e_s_c_r_i_p_t_i_o_n:

     If the input object is of class 'ExpressionSet', the function
     extracts the gene expression matrix.

_U_s_a_g_e:

     twilight.getmatrix(xin)

_A_r_g_u_m_e_n_t_s:

     xin: Input object of class 'ExpressionSet'.

_V_a_l_u_e:

     Returns the matrix of gene expression values.

_A_u_t_h_o_r(_s):

     Stefanie Scheid <URL: http://www.molgen.mpg.de/~scheid>

_R_e_f_e_r_e_n_c_e_s:

     Scheid S and Spang R (2004): A stochastic downhill search
     algorithm for estimating the local false discovery rate, _IEEE
     TCBB_ *1(3)*, 98-108.

     Scheid S and Spang R (2005): twilight; a Bioconductor package for
     estimating the local false discovery rate, _Bioinformatics_
     *21(12)*, 2921-2922. 

     Scheid S and Spang R (2006): Permutation filtering: A novel
     concept for significance analysis of large-scale genomic data, in:
     Apostolico A, Guerra C, Istrail S, Pevzner P, and Waterman M
     (Eds.): _Research in Computational Molecular Biology: 10th Annual
     International Conference, Proceedings of RECOMB 2006, Venice,
     Italy, April 2-5, 2006_. Lecture Notes in Computer Science vol.
     3909, Springer, Heidelberg, pp. 338-347.

_S_e_e _A_l_s_o:

     'twilight.pval'

