jmimo.py 文件源码

def _cv_pilot_reg_r0(self, alpha = 0):

        """
        Cross-validatin scores are evaluated using LOO. 
        SNRpilot is equal to SNR, which is SNRdata.     
        """
        Npilot = self.Npilot
        SNRpilot = self.SNR
        model = self.model

        BPSK, s_a, x_flat_a, x_a = gen_BPSK( Npilot, self.Nt)
        # H_a = gen_H( self.Nr, self.Nt)
        # H_a = self.H_a
        y_a = gen_Rx( self.Nr, Npilot, SNRpilot, self.H_a, x_a)

        yT_a = y_a.T

        # kf = KFold() 
        # loo = cross_validation.LeaveOneOut( x_a.shape[0])
        if alpha == 0:
            lm = linear_model.LinearRegression()
        else:
            lm = getattr( linear_model, model)(alpha)
        scores = codes.cross_val_score_loo( lm, yT_a, x_a)

        return scores