Changes to bring page count down.

Made plots smaller, moved legends outside of plot (so smallersize
is still readable), moved plotting code into external modules.

code/book_plots.py

@@ -7,6 +7,26 @@ Created on Fri May  2 12:21:40 2014
 import matplotlib.pyplot as plt
 import numpy as np
 
+def plot_errorbars(bars, xlims):
+
+    i = 1.0
+    for bar in bars:
+        plt.errorbar([bar[0]], [i], xerr=[bar[1]], fmt='o', label=bar[2] , capthick=2, capsize=10)
+        i += 0.2
+
+    plt.ylim(0, 2)
+    plt.xlim(xlims[0], xlims[1])
+    show_legend()
+    plt.gca().axes.yaxis.set_ticks([])
+    plt.show()
+    
+        
+
+
+def show_legend():
+    plt.legend(loc='center left', bbox_to_anchor=(1, 0.5))
+
+
 def bar_plot(pos, ylim=(0,1), title=None):
     plt.cla()
     ax = plt.gca()