Convert histograms counts to float64 by default

src/graph_tool/stats/__init__.py

@@ -41,33 +41,33 @@ from numpy import *
 __all__ = ["vertex_hist", "edge_hist", "label_components",
            "label_parallel_edges",  "label_self_loops"]
 
-def vertex_hist(g, deg, bins=[1]):
+def vertex_hist(g, deg, bins=[1], float_count=True):
     ret = libgraph_tool_stats.\
           get_vertex_histogram(g._Graph__graph, _degree(g, deg), bins)
-    return [array(ret[0]), ret[1]]
+    return [array(ret[0], dtype="float64") if float_count else ret[0], ret[1]]
 
-def edge_hist(g, eprop, bins=[1]):
+def edge_hist(g, eprop, bins=[1], float_count=True):
     ret = libgraph_tool_stats.\
           get_edge_histogram(g._Graph__graph, _prop("e", g, eprop), bins)
-    return [array(ret[0]), ret[1]]
+    return [array(ret[0], dtype="float64") if float_count else ret[0], ret[1]]
 
 def label_components(g, vprop=None):
     if vprop == None:
         vprop = g.new_vertex_property("int32_t")
     libgraph_tool_stats.\
           label_components(g._Graph__graph, _prop("v", g, vprop))
-    return _prop("v", g, vprop)
+    return vprop
 
 def label_parallel_edges(g, eprop):
     if eprop == None:
         eprop = g.new_edge_property("int32_t")
     libgraph_tool_stats.\
           label_parallel_edges(g._Graph__graph, _prop("e", g, eprop))
-    return _prop("e", g, eprop)
+    return eprop
 
 def label_self_loops(g, eprop):
     if eprop == None:
         eprop = g.new_edge_property("int32_t")
     libgraph_tool_stats.\
           label_self_loops(g._Graph__graph, _prop("e", g, eprop))
-    return _prop("e", g, eprop)
+    return eprop