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Somewhere from the Diffraction to the power signal the units and scale of the real space axes are getting lost. Probably something not copying correctly

When you have Power Signal you should be able to get a map of the symmetries from the Power Signal and currently it throws an error.

Make sure the three cases all work as expected:
(Make an explicit test for these three cases)

ps.get_map(k_region =[3.0,6.0]) #Sums over the k region 3.0-6.0 and for all symmetries ps.get_map(k_region =[3.0,6.0], symmetry=10) #Sums over the k region 3.0-6.0, symmetries=10 ps.get_map(k_region =[3.0,6.0], symmetry=[8,9,10]) #Sums over the k region 3.0-6.0, symmetries=8-10
It might be as simple as the symmetry needs to be written not as a list but as a set eg. [ ] vs ( )

With a polar signal, the autocorrelation function will remove the mask. Most likely it is something to do with numpy's persistence with masks. Need to adjust the autocorrelate function in misc.

Currently there are some problems with the FEM in the program. To fix these problems a few different methods need to be implemented.

• Adjust the current FEM methods so that they correct for shot noise
• Make sure that the HAADF intensity filter works as well.
• Add all methods as described in [1]

The other sources should have information on shot noise corrections.
[1] Daulton, T. L., Bondi, K. S., & Kelton, K. F. (2010).Ultramicroscopy, 110(10), 1279–1289.
[2] M.M.J. Treacy, J.M. Gibson, Acta Crystallogr. A 52 (1996) 212.
[3]P.M. Voyles, M.M.J. Treacy, J.M. Gibson, H.-C. Jin, J.R. Abelson, Mater. Res. Soc. Symp. Proc. 589 (2001) 155.