btrf                  package:Bhat                  R Documentation

_G_e_n_e_r_a_l_i_z_e_d _i_n_v_e_r_s_e-_l_o_g_i_t _t_r_a_n_s_f_o_r_m

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

     maps real line onto open interval (xl, xu) using the transform y =
     (exp(xt) * xu + xl)/(1.+exp(xt)) where xt is a numeric vector with
     -Inf < xt < Inf

_U_s_a_g_e:

     btrf(xt, xl, xu)

_A_r_g_u_m_e_n_t_s:

      xt: a numeric vector 

      xl: a numeric vector of same length as x

      xu: a numeric vector of same length as x, and xu > xl

_V_a_l_u_e:

     returns the inverse-logit transform (numeric) of xt

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

     E. Georg Luebeck (FHCRC)

_S_e_e _A_l_s_o:

     'ftrf'

