Update _Distance.gen.m

Author: egolol

braph2genesis/measures/_Distance.gen.m

@@ -40,6 +40,7 @@
 distance = cell(g.layernumber(), 1);
 connectivity_type =  g.getConnectivityType(g.layernumber());
 connectivity_type = diag(connectivity_type);
+Aii_tmp = {};
 for li = 1:g.layernumber()
     Aii_tmp{li} = A{li, li}; %#ok<AGROW>
 end