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#!/usr/bin/env python
from tempfile import mktemp
from numpy.testing import *
from numpy import array,transpose
set_package_path()
from io.mmio import mminfo,mmread,mmwrite
import scipy
restore_path()
class test_mmio_array(NumpyTestCase):
def check_simple(self):
a = [[1,2],[3,4]]
fn = mktemp()
mmwrite(fn,a)
assert_equal(mminfo(fn),(2,2,4,'array','integer','general'))
b = mmread(fn)
assert_array_almost_equal(a,b)
def check_simple_rectangular(self):
a = [[1,2,3],[4,5,6]]
fn = mktemp()
mmwrite(fn,a)
assert_equal(mminfo(fn),(2,3,6,'array','integer','general'))
b = mmread(fn)
assert_array_almost_equal(a,b)
def check_simple_rectangular_real(self):
a = [[1,2],[3.5,4],[5,6]]
fn = mktemp()
mmwrite(fn,a)
assert_equal(mminfo(fn),(3,2,6,'array','real','general'))
b = mmread(fn)
assert_array_almost_equal(a,b)
def check_simple_real(self):
a = [[1,2],[3,4.0]]
fn = mktemp()
mmwrite(fn,a)
assert_equal(mminfo(fn),(2,2,4,'array','real','general'))
b = mmread(fn)
assert_array_almost_equal(a,b)
def check_simple_complex(self):
a = [[1,2],[3,4j]]
fn = mktemp()
mmwrite(fn,a)
assert_equal(mminfo(fn),(2,2,4,'array','complex','general'))
b = mmread(fn)
assert_array_almost_equal(a,b)
def check_simple_symmetric(self):
a = [[1,2],[2,4]]
fn = mktemp()
mmwrite(fn,a)
assert_equal(mminfo(fn),(2,2,4,'array','integer','symmetric'))
b = mmread(fn)
assert_array_almost_equal(a,b)
def check_simple_skew_symmetric(self):
a = [[1,2],[-2,4]]
fn = mktemp()
mmwrite(fn,a)
assert_equal(mminfo(fn),(2,2,4,'array','integer','skew-symmetric'))
b = mmread(fn)
assert_array_almost_equal(a,b)
def check_simple_skew_symmetric_float(self):
a = array([[1,2],[-2.0,4]],'f')
fn = mktemp()
mmwrite(fn,a)
assert_equal(mminfo(fn),(2,2,4,'array','real','skew-symmetric'))
b = mmread(fn)
assert_array_almost_equal(a,b)
def check_simple_hermitian(self):
a = [[1,2+3j],[2-3j,4]]
fn = mktemp()
mmwrite(fn,a)
assert_equal(mminfo(fn),(2,2,4,'array','complex','hermitian'))
b = mmread(fn)
assert_array_almost_equal(a,b)
def check_random_symmetric_real(self):
sz = (20,20)
a = rand(*sz)
a = a + transpose(a)
fn = mktemp()
mmwrite(fn,a)
assert_equal(mminfo(fn),(20,20,400,'array','real','symmetric'))
b = mmread(fn)
assert_array_almost_equal(a,b)
def check_random_rect_real(self):
sz = (20,15)
a = rand(*sz)
fn = mktemp()
mmwrite(fn,a)
assert_equal(mminfo(fn),(20,15,300,'array','real','general'))
b = mmread(fn)
assert_array_almost_equal(a,b)
_exmpl_mtx = '''\
%%MatrixMarket matrix coordinate real general
%=================================================================================
%
% This ASCII file represents a sparse MxN matrix with L
% nonzeros in the following Matrix Market format:
%
% +----------------------------------------------+
% |%%MatrixMarket matrix coordinate real general | <--- header line
% |% | <--+
% |% comments | |-- 0 or more comment lines
% |% | <--+
% | M N L | <--- rows, columns, entries
% | I1 J1 A(I1, J1) | <--+
% | I2 J2 A(I2, J2) | |
% | I3 J3 A(I3, J3) | |-- L lines
% | . . . | |
% | IL JL A(IL, JL) | <--+
% +----------------------------------------------+
%
% Indices are 1-based, i.e. A(1,1) is the first element.
%
%=================================================================================
5 5 8
1 1 1.000e+00
2 2 1.050e+01
3 3 1.500e-02
1 4 6.000e+00
4 2 2.505e+02
4 4 -2.800e+02
4 5 3.332e+01
5 5 1.200e+01
'''
class test_mmio_coordinate(NumpyTestCase):
def check_simple_todense(self):
fn = mktemp()
f = open(fn,'w')
f.write(_exmpl_mtx)
f.close()
assert_equal(mminfo(fn),(5,5,8,'coordinate','real','general'))
a = [[1, 0, 0, 6, 0],
[0, 10.5, 0, 0, 0],
[0, 0, .015, 0, 0],
[0, 250.5, 0, -280, 33.32],
[0, 0, 0, 0, 12]]
b = mmread(fn).todense()
assert_array_almost_equal(a,b)
def check_simple_write_read(self):
I = array([0, 0, 1, 2, 3, 3, 3, 4])
J = array([0, 3, 1, 2, 1, 3, 4, 4])
V = array([ 1.0, 6.0, 10.5, 0.015, 250.5, -280.0, 33.32, 12.0 ])
b = scipy.sparse.coo_matrix((V,(I,J)),dims=(5,5))
fn = mktemp()
mmwrite(fn,b)
assert_equal(mminfo(fn),(5,5,8,'coordinate','real','general'))
a = [[1, 0, 0, 6, 0],
[0, 10.5, 0, 0, 0],
[0, 0, .015, 0, 0],
[0, 250.5, 0, -280, 33.32],
[0, 0, 0, 0, 12]]
b = mmread(fn).todense()
assert_array_almost_equal(a,b)
if __name__ == "__main__":
NumpyTest().run()
|
