PSI(Percent spliced-in) Difference test

Question

[fuhaolll2]

I have 300 singlecells and already calculate their PSI(0<=psi<=1 or NA) for different AS events. Cells can be divided into two category. For every AS event i want to do difference test for PSI between two category. table may as follow:

          category1       category1    category1  ...    category2  category2  category2

             cell1       cell2        cell3      ...      cell151     cell152      cell153

 event1       0.5          0             1       ...          NA           NA          1

 event2        1           1           0.9      ...            0           0         0.1

Could you tell me which methods of difference test is good for it, and how to deal with NA Thanks