Errors arise when there are too few clusters

[tonywong94]

The 'if kg>1' clause that begins on line 792 of scimes.py generates errors if the conditional evaluates to False. Namely,

1. line 834 has variable 'all_leaves_idx' which is undefined, should probably be 'all_leav_idx':

NameError: name 'all_leaves_idx' is not defined

2. line 836 passes 'mul_leav_idx' to 'clust_cleaning', producing this kind of error:

--> 327 clust_leaves_idx = np.asarray(allleavidx)[clust_idx]
IndexError: boolean index did not match indexed array along dimension 0; dimension is 27 but corresponding boolean dimension is 31

3. line 866 has parameter 'n_components=ks' which is not defined for this case:

UnboundLocalError: local variable 'ks' referenced before assignment