SciPy 0.6.0 API Documentation Generated by Endo, 2007-10-17

Function summary

• mminfo(source)
• mmread(source)
• mmwrite(target, a, comment = '', field = None, precision = None)

Functions

• mminfo(source)

  Queries the contents of the Matrix Market file 'filename' to
  extract size and storage information.
  
  Inputs:
  
    source     - Matrix Market filename (extension .mtx) or open file object
  
  Outputs:
  
    rows,cols  - number of matrix rows and columns
    entries    - number of non-zero entries of a sparse matrix
                 or rows*cols for a dense matrix
    rep        - 'coordinate' | 'array'
    field      - 'real' | 'complex' | 'pattern' | 'integer'
    symm       - 'general' | 'symmetric' | 'skew-symmetric' | 'hermitian'
  

• mmread(source)

  Reads the contents of a Matrix Market file 'filename' into a matrix.

  Inputs:

  source - Matrix Market filename (extensions .mtx, .mtz.gz)

  or open file object.

  Outputs:

  a - sparse or full matrix

• mmwrite(target, a, comment = '', field = None, precision = None)

  Writes the sparse or dense matrix A to a Matrix Market formatted file.

  Inputs:

  target - Matrix Market filename (extension .mtx) or open file object a - sparse or full matrix comment - comments to be prepended to the Matrix Market file field - 'real' | 'complex' | 'pattern' | 'integer' precision - Number of digits to display for real or complex values.

Imported Names