API Documentation Generated by Endo, 2006-08-14

Variables

• ALLOCSIZE

  ALLOCSIZE = 1000
  
  

• MAXPRINT

  MAXPRINT = 50
  
  

• NZMAX

  NZMAX = 100
  
  

• issparse

  issparse = isspmatrix
  
  

Classes

• coo_matrix - A sparse matrix in coordinate list format.
• csc_matrix - Compressed sparse column matrix
• csr_matrix - Compressed sparse row matrix
• dok_matrix - A dictionary of keys based matrix. This is an efficient
• lil_matrix - Row-based linked list matrix, by Ed Schofield.
• spmatrix - This class provides a base class for all sparse matrices. It

Function summary

• getdtype(dtype, a = None, default = None)
• isdense(x)
• isshape(x)
• isspmatrix(x)
• isspmatrix_coo(x)
• isspmatrix_csc(x)
• isspmatrix_csr(x)
• isspmatrix_dok(x)
• isspmatrix_lil(x)
• resize1d(arr, newlen)
• spdiags(diags, offsets, M, N)
• speye(n, m = None, k = 0, dtype = 'd')
• spidentity(n, dtype = 'd')

Functions

• getdtype(dtype, a = None, default = None)

  Function used to simplify argument processing. If 'dtype' is not specified (is None), returns a.dtype; otherwise returns a numpy.dtype object created from the specified dtype argument. If 'dtype' and 'a' are both None, construct a data type out of the 'default' parameter. Furthermore, 'dtype' must be in 'allowed' set.

• isdense(x)
• isshape(x)

  Is x a valid 2-tuple of dimensions?

• isspmatrix(x)
• isspmatrix_coo(x)
• isspmatrix_csc(x)
• isspmatrix_csr(x)
• isspmatrix_dok(x)
• isspmatrix_lil(x)
• resize1d(arr, newlen)
• spdiags(diags, offsets, M, N)

  Return a sparse matrix in CSC format given its diagonals.

  B = spdiags(diags, offsets, M, N)

  Inputs:

  diags -- rows contain diagonal values offsets -- diagonals to set (0 is main) M, N -- sparse matrix returned is M X N

• speye(n, m = None, k = 0, dtype = 'd')

  speye(n, m) returns a (n x m) matrix stored in CSC sparse matrix format, where the k-th diagonal is all ones, and everything else is zeros.

• spidentity(n, dtype = 'd')

  spidentity( n ) returns the identity matrix of shape (n, n) stored in CSC sparse matrix format.

Imported names