Transpose AnnData in Python

[lazappi]

AnnData objects have a .T method which transposes the whole object. It may be more efficient to use that rather than transpose each matrix in R as we do currently in AnnData2SCE()

May lead to confusion in the code though as .var would no longer refer to variable (features) and .obs to observations (cells).

[lazappi]

Did a quick benchmark and it doesn't seem to make a lot of difference so don't think it's worth the effort.

Unit: seconds
                  expr       min        lq     mean   median       uq      max neval
   AnnData2SCE(adata2) 10.606434 11.042323 11.34995 11.27907 11.49126 14.75223   100
 AnnData2SCE_T(adata2)  9.521594  9.891049 10.12624 10.03706 10.33960 12.24301   100