From 014d052904b3f3548310ddf77f7e95d23762d6ce Mon Sep 17 00:00:00 2001
From: Tiago de Paula Peixoto <tiago@skewed.de>
Date: Sun, 2 Aug 2009 21:37:22 +0200
Subject: [PATCH] Small modifications in the quick start guide

---
 doc/price.py       |  3 ++-
 doc/quickstart.rst | 18 +++++++++++++++++-
 2 files changed, 19 insertions(+), 2 deletions(-)

diff --git a/doc/price.py b/doc/price.py
index d7053a52..05707498 100755
--- a/doc/price.py
+++ b/doc/price.py
@@ -57,9 +57,10 @@ for i in xrange(1, N):
 in_hist = vertex_hist(g, "in")
 
 clf()
-errorbar(in_hist[1], in_hist[0], fmt=".", yerr=sqrt(in_hist[0]))
+errorbar(in_hist[1], in_hist[0], fmt="o", yerr=sqrt(in_hist[0]), label="in")
 gca().set_yscale("log")
 gca().set_xscale("log")
+legend(loc="best")
 xlabel("$k_{in}$")
 ylabel("$P(k_{in})$")
 savefig("deg-hist.png")
diff --git a/doc/quickstart.rst b/doc/quickstart.rst
index ceae6c6a..1b0ce36c 100644
--- a/doc/quickstart.rst
+++ b/doc/quickstart.rst
@@ -334,5 +334,21 @@ An Example: Building a Price Network
     Nowhere else to go... We found the main hub!
 
 
-.. image:: deg-hist.png
+.. figure:: deg-hist.png
+   :align: center
 
+   In-degree distribution of a price network with 100000 nodes.
+
+We can draw the graph to see some other features of its topology. For that we
+use the :func:`~graph_tool.draw.graph_draw` function.
+
+.. testcode::
+
+   g = load_graph("price.xml.gz")
+   g.remove_vertex_if(lambda v: g.vertex_index[v] >= 1000)
+   gt.graph_draw(g, output="price.png")
+
+.. figure:: price.png
+   :align: center
+
+   First 1000 nodes of a price network.
-- 
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