[SciPy-dev] FFT and new failures

Pearu Peterson pearu at scipy.org
Fri Jul 22 05:04:47 CDT 2005


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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>




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