[SciPy-dev] FFT and new failures

[Pearu Peterson]

Hi,

The bugs leading to the errors below are now fixed in CVS. They 
appared only when using fftw3 library in fftpack.

Pearu

On Fri, 22 Jul 2005, Nils Wagner wrote:

> Using latest cvs scipy.test(1,verbosity=10) results in
>
> ======================================================================
> FAIL: check_n_argument_complex (scipy.fftpack.basic.test_basic.test_fft)
> ----------------------------------------------------------------------
> Traceback (most recent call last):
> File 
> "/usr/local/lib/python2.4/site-packages/scipy/fftpack/tests/test_basic.py", 
> line 118, in check_n_argument_complex
>   assert_array_almost_equal(y[0],direct_dft(x1))
> File "/usr/local/lib/python2.4/site-packages/scipy_test/testing.py", line 
> 740, in assert_array_almost_equal
>   assert cond,\
> AssertionError:
> Arrays are not almost equal (mismatch 100.0%):
>       Array 1: [  4.+0.j  16.+4.j  12.+0.j   8.+0.j]
>       Array 2: [ 10.+1.j  -3.+2.j  -2.-1.j  -1.-2.j]
>
>
> ======================================================================
> FAIL: check_axes_argument (scipy.fftpack.basic.test_basic.test_fftn)
> ----------------------------------------------------------------------
> Traceback (most recent call last):
> File 
> "/usr/local/lib/python2.4/site-packages/scipy/fftpack/tests/test_basic.py", 
> line 502, in check_axes_argument
>   assert_array_almost_equal(fft(x[i,j,:]),y[i,j,:])
> File "/usr/local/lib/python2.4/site-packages/scipy_test/testing.py", line 
> 740, in assert_array_almost_equal
>   assert cond,\
> AssertionError:
> Arrays are not almost equal (mismatch 66.6666666667%):
>       Array 1: [ 6. +0.j        -1.5+0.8660254j -1.5-0.8660254j]
>       Array 2: [ 6. +0.j        -1.5-0.8660254j -1.5+0.8660254j]
>
>
> ======================================================================
> FAIL: check_definition (scipy.fftpack.basic.test_basic.test_fftn)
> ----------------------------------------------------------------------
> Traceback (most recent call last):
> File 
> "/usr/local/lib/python2.4/site-packages/scipy/fftpack/tests/test_basic.py", 
> line 419, in check_definition
>   assert_array_almost_equal(y,direct_dftn(x))
> File "/usr/local/lib/python2.4/site-packages/scipy_test/testing.py", line 
> 740, in assert_array_almost_equal
>   assert cond,\
> AssertionError:
> Arrays are not almost equal (mismatch 100.0%):
>       Array 1: [[ 45. +0.j         -4.5-2.5980762j  -4.5+2.5980762j]
> [-13.5-7.7942286j   0. +0.j          0. +0.j       ]
> [-13.5+7.79...
>       Array 2: [[ 135. +0.j         -13.5-7.7942286j  -13.5+7.7942286j]
> [  -4.5+2.5980762j   -4.5+2.5980762j   -4.5+2.5980762j]
> [  -4...
>
>
> ======================================================================
> FAIL: check_shape_axes_argument (scipy.fftpack.basic.test_basic.test_fftn)
> ----------------------------------------------------------------------
> Traceback (most recent call last):
> File 
> "/usr/local/lib/python2.4/site-packages/scipy/fftpack/tests/test_basic.py", 
> line 531, in check_shape_axes_argument
>   assert_array_almost_equal (y[i],fft(large_x1[i]))
> File "/usr/local/lib/python2.4/site-packages/scipy_test/testing.py", line 
> 740, in assert_array_almost_equal
>   assert cond,\
> AssertionError:
> Arrays are not almost equal (mismatch 50.0%):
>       Array 1: [ 6.+0.j -2.+2.j  2.+0.j -2.-2.j]
>       Array 2: [ 6.+0.j -2.-2.j  2.+0.j -2.+2.j]
>
>
> ======================================================================
> FAIL: check_definition (scipy.fftpack.basic.test_basic.test_ifftn)
> ----------------------------------------------------------------------
> Traceback (most recent call last):
> File 
> "/usr/local/lib/python2.4/site-packages/scipy/fftpack/tests/test_basic.py", 
> line 586, in check_definition
>   assert_array_almost_equal(y,direct_idftn(x))
> File "/usr/local/lib/python2.4/site-packages/scipy_test/testing.py", line 
> 740, in assert_array_almost_equal
>   assert cond,\
> AssertionError:
> Arrays are not almost equal (mismatch 100.0%):
>       Array 1: [[ 5. +0.j        -0.5+0.2886751j -0.5-0.2886751j]
> [-1.5+0.8660254j  0. +0.j         0. +0.j       ]
> [-1.5-0.8660254j ...
>       Array 2: [[ 15. +0.j         -1.5+0.8660254j  -1.5-0.8660254j]
> [ -0.5-0.2886751j  -0.5-0.2886751j  -0.5-0.2886751j]
> [ -0.5+0.28...
>
>
> ======================================================================
> FAIL: check_round (scipy.special.basic.test_basic.test_round)
> ----------------------------------------------------------------------
> Traceback (most recent call last):
> File 
> "/usr/local/lib/python2.4/site-packages/scipy/special/tests/test_basic.py", 
> line 1789, in check_round
>   assert_array_equal(rnd,rndrl)
> File "/usr/local/lib/python2.4/site-packages/scipy_test/testing.py", line 
> 715, in assert_array_equal
>   assert cond,\
> AssertionError:
> Arrays are not equal (mismatch 25.0%):
>       Array 1: [10 10 11 11]
>       Array 2: [10 10 10 11]
>
>
> ----------------------------------------------------------------------
> Ran 1265 tests in 3.386s
>
> FAILED (failures=6)
> <unittest.TextTestRunner object at 0x418d470c>
>>>>
>
> Nils
>
>
>
>
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