And the above errors about 1d array and 2d array also happens when I run example at <a href="http://www.vtk.org/Wiki/VTK/Examples/Cxx/Utilities/vtkPCAStatistics">http://www.vtk.org/Wiki/VTK/Examples/Cxx/Utilities/vtkPCAStatistics</a> too.<br>
<br>Wenlong<br>