simulates sequences for a given tree under Jukes Cantor model

simSequences.py

@@ -79,7 +79,6 @@ def simulateSequences(self, num_sites):
 
         return self.states
 
-
     def __str__(self):
         # __str__ is a built-in function that is used by print to show an object
         descendants_as_string = ','.join(['%d' % d for d in self.descendants])
@@ -97,8 +96,6 @@ def __str__(self):
             parstr = '%d' % self.par.number
 
         return 'node: number=%d edgelen=%g lchild=%s rsib=%s parent=%s descendants=[%s]' % (self.number, self.edgelen, lchildstr, rsibstr, parstr, descendants_as_string)
-
-
 
 
 def simulate2(preorder, ntax,  num_sites, out):
@@ -117,8 +114,6 @@ def simulate2(preorder, ntax,  num_sites, out):
     newf.write('end;')
 
 
-
-
 def readnewick(tree):
     total_length = len(tree)
     internal_node_number = -1