code: def cont_c(self, percent=0.9, N=None):  # bug? check axis number 0 vs 1 here
  		
  
  		if not hasattr(self, 'G'):
  			self.fs_c(N=self.rank)  # generate G
  		return apply_along_axis(lambda _: _/self.L[:N], 1,
  			   apply_along_axis(lambda _: _*self.c, 0, self.G[:, :N]**2))
docs: Return the contribution of each column.