rSquared               package:micEcon               R Documentation

_C_a_l_c_u_l_a_t_e _R _s_q_u_a_r_e_d _v_a_l_u_e

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

     Calculate R squared value.

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

     rSquared( y, resid )

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

      y : vector of endogenous variables

  resid : vector of residuals

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

     Arne Henningsen ahenningsen@agric-econ.uni-kiel.de

_E_x_a_m_p_l_e_s:

        data( Blanciforti86 )
        reg <- lm( wFood1 ~ pFood1 + xFood, Blanciforti86 )
        rSquared( Blanciforti86$wFood1, reg$residuals )
        summary( reg )$r.squared  # returns the same value

