unitestFilter-methods          package:xps          R Documentation

_U_n_i_t_e_s_t _F_i_l_t_e_r

_D_e_s_c_r_i_p_t_i_o_n:

     This method initializes the Unitest Filter. 
      Applying an unitest such as the 't.test' to two groups returns
     the p-value for the test and the value of the t-statistic. The
     Unitest Filter allows to select only rows satisfying e.g. a
     certain p-value as cutoff. 
      The Unitest Filter flags all rows with: 'flag = (variable <=
     cutoff)'

     _Usage_

     'unitestFilter(object)' 
      'unitestFilter(object, value)<-'

_A_r_g_u_m_e_n_t_s:

  object: object of class 'UniFilter'.

   value: character vector 'c(cutoff, variable)'.

_D_e_t_a_i_l_s:

     The method 'unitestFilter' initializes the following parameters:

         'cutoff':    the cutoff level for the filter.
         'variable':  'variable="pval"' (default): p-value.
                      'variable="stat"': univariate statistic.
                      'variable="padj"': optional adjusted p-value.
                      'variable="pcha"': optional p-value obtained by permutations.

_V_a_l_u_e:

     An initialized 'UniFilter' object.

_A_u_t_h_o_r(_s):

     Christian Stratowa

_E_x_a_m_p_l_e_s:

     unifltr <- UniFilter()
     unitestFilter(unifltr) <- c(0.01,"pval")
     str(unifltr)

