pylspm.py 文件源码

def xloads(self):
        # Xloadings
        A = self.data_.transpose().values
        B = self.fscores.transpose().values
        A_mA = A - A.mean(1)[:, None]
        B_mB = B - B.mean(1)[:, None]

        ssA = (A_mA**2).sum(1)
        ssB = (B_mB**2).sum(1)

        xloads_ = (np.dot(A_mA, B_mB.T) /
                   np.sqrt(np.dot(ssA[:, None], ssB[None])))
        xloads = pd.DataFrame(
            xloads_, index=self.manifests, columns=self.latent)

        return xloads