SparseAPCluster.py 文件源码

def denseToSparseAbvCutoff(self, denseMatrix, cutoff):
        """
        Remove datas in denseMatrix that is below cutoff, Convert the remaining datas into sparse matrix.
        Parameters:
        ----------------------
        denseMatrix: dense numpy matrix

        cutoff: int or float

        Returns
        ----------------------
        Scipy csr_matrix

        """
        maskArray=denseMatrix>=cutoff
        sparseMatrix=csr_matrix( (np.asarray(denseMatrix[maskArray]).reshape(-1),np.nonzero(maskArray)),\
                    shape=denseMatrix.shape)
        return sparseMatrix