[Insight-developers] ITK 3.14 vnl_svd.txx: suspicious return value

[Richard Beare]

Hi,
I'm getting the following error when using StatNonParamTestPDM from
the IJ article "Framework for the Statistical Shape Analysis of Brain
Structures using SPHARM-PDM", http://hdl.handle.net/1926/215:

data has been relabeled: 0 --> group A = 0 ; 0 --> group B = 1
# A: 13, #B: 0
tupel: 3 , numFeatures: 3006
group sizes: 13/0 = 13
Features : 3006 , real: 1002
./usr/local/hpcmedsw/Build/InsightToolkit-3.14.0/Utilities/vxl/core/vnl/algo/vnl_svd.txx:
suspicious return value (3) from SVDC
/usr/local/hpcmedsw/Build/InsightToolkit-3.14.0/Utilities/vxl/core/vnl/algo/vnl_svd.txx:
M is 3x3
M = [ ...
             nan              nan              nan
             nan              nan              nan
             nan              nan              nan  ]
/usr/local/hpcmedsw/Build/InsightToolkit-3.14.0/Utilities/vxl/core/vnl/algo/vnl_svd.txx:
suspicious return value (3) from SVDC
/usr/local/hpcmedsw/Build/InsightToolkit-3.14.0/Utilities/vxl/core/vnl/algo/vnl_svd.txx:
M is 3x3
M = [ ...
             nan              nan              nan
             nan              nan              nan
             nan              nan              nan  ]


repeated many times.


There are some references to this sort of error from ITK 3.12, but
there doesn't appear to been a successful resolution. Does anyone have
any advice? The odd thing is that I think I had run these scripts on
similar data about 2 years ago without any issues.

Thanks