mm_read1 mm_read_info mm_write1 readgmsh22 writegmsh22 writevtkug

mm_write1() def mm_write1 ( fname  , nrow  , ncol  , val  , rowptr  , colind  , fchk  = 0, mshape  = 0  ) Write a matrix to the Matrix Market file Purpose This function writes a real sparse matrix in CSR format to the Matrix Market file. The data is written as it is without checking the contents. Returns info (int) = 0: Successful exit. < 0: The (-info)-th argument is invalid. = 1: Failed to open file. = 2: File already exists. Parameters [in] fname Input file name. [in] nrow Number of rows of the matrix. (nrow >= 0) (If nrow = 0, returns without computation) [in] ncol Number of columns of the matrix. (ncol >= 0) (If ncol = 0, returns without computation) [in] val Numpy ndarray (1-dimensional, float, nnz) Values of nonzero elements of sparse matrix (where nnz is the number of nonzero elements). [in] rowptr Numpy ndarray (1-dimensional, int32, nrow + 1) Row pointers of sparse matrix. [in] colind Numpy ndarray (1-dimensional, int32, nnz) Column indices of sparse matrix (where nnz is the number of nonzero elements). [in] fchk (Optional) Specify whether to check if the specified file already exists. (default = 0) = 0: Overwrites without checking. = 1: Returns an error (info = 2) if the specified file already exists. [in] mshape (Optional) 行列の形状. (default = 0) = 0: General. = 1: Symmetric. = 2: Skew-symmetric.