New self.dimension_ member to avoid calls to Distribution.getDimension()
Minor changes: Add a dot method, to avoid calls to ot.dot(), and multiply error by factor outside of the loop
Cosmetics: rename walker into iterator
Enable the cache mechanism by default

Remove methods obsoleted by MaxNormMeshGrid.py.
Slightly edit comments
Also store the transposed matrix into a class member, it is needed during computations
Make CachedMeshGrid.get_skin_iterator and CachedMeshGrid.get_skin_iterator_evaluate more readable
[src] added missing dimension check to computePDFOn1DGrid: the method should be applied only for dimension 1
[src] in computePDFOn1DGrid, fixed some minor bugs
[src] fixed fft1d phase angle computation. The computation seems correct now.
To be tested
[test] updated test of R^2-->R with two uniform inputs : added computation of pdf on a grid, removed some 'dead code'
[test] update of test result
[src] added some checks and comments to the computePDF on 1D grid
[src] added first version of the computePDFOn2DGrid method. Ongoing work
[src] fixed some bugs with the computePDFOn2DGrid methods. Still some problems to solve
[test] updated some tests due to the new cache mecanise : setMaxSize method is currently missing
[src] cosmetics. added some comments for easy debugging
[src] removed useless intermediate variables
[src] Fixed the computePDF on grid methods for both 1D and 2D: exception
replaces the warning
Return of analytical values in case of analytical computation of pdf, which
makes calculations faster
Fixed some comments within the docstring
[test] added analytical 3D case. Ongoing work