code: def loadings(self):
          
          loadings = self.v[:, : self.keep] * np.sqrt(self.eigenvalues)
          cols = ["PC%s" % i for i in range(1, self.keep + 1)]
          loadings = pd.DataFrame(
              loadings, columns=cols, index=self.feature_names
          )
          return loadings
docs: Loadings = eigenvectors times sqrt(eigenvalues).