[cctbxbb] Assertion Error in twin target test

[Peter Zwart]

Hi Luc,

Not sure, maybe a random number quirk or so. Definitely not your problem.

Try updating the cctbx and rerun it, i made some small (but significant 
changes). Let me know if it works.

Peter


Luc Bourhis wrote:
> Hi all,
> 
> I have modified the least square residual classes in cctbx/xray/ 
> targets.h and cctbx.xray to handle refinement against F^2. In the  
> subsequent tests, the following assertion failure cropped up. It does  
> not feel to me my changes caused it…
> 
> Luc
> 
> libtbx.python /Users/luc/Developer/cctbx/cctbx_sources/cctbx/cctbx/ 
> regression/tst_twin_target.py
> approx_equal eps: 0.5
> approx_equal multiplier: 10000000000.0
> -0.510137170481 approx_equal ERROR
> 0 approx_equal ERROR
> 
> Traceback (most recent call last):
>    File "/Users/luc/Developer/cctbx/cctbx_sources/cctbx/cctbx/ 
> regression/tst_twin_target.py", line 540, in <module>
>      run()
>    File "/Users/luc/Developer/cctbx/cctbx_sources/cctbx/cctbx/ 
> regression/tst_twin_target.py", line 488, in run
>      tst_ls_on_i()
>    File "/Users/luc/Developer/cctbx/cctbx_sources/cctbx/cctbx/ 
> regression/tst_twin_target.py", line 95, in tst_ls_on_i
>      assert approx_equal( (fdif_real-old_derivs[0][N_test])/fdif_real, 
> 0, eps=5e-1)
> AssertionError
> 
> 
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