Fixed bug with book building.

merge_book.py

@@ -0,0 +1,35 @@
+import io
+from IPython.nbformat import current
+import sys
+
+def remove_formatting(nb):
+    w = nb['worksheets']
+    node = w[0]
+    c = node['cells']
+    for i in range (len(c)):
+        if 'input' in c[i].keys():
+            if c[i]['input'][0:16] == '#format the book':
+                del c[i]
+                return
+
+
+def merge_notebooks(filenames):
+    merged = None
+    for fname in filenames:
+        with io.open(fname, 'r', encoding='utf-8') as f:
+            nb = current.read(f, u'json')
+            remove_formatting(nb)
+        if merged is None:
+            merged = nb
+        else:
+            merged.worksheets[0].cells.extend(nb.worksheets[0].cells)
+    merged.metadata.name += "_merged"
+
+    print current.writes(merged, u'json')
+
+
+if __name__ == '__main__':
+    #merge_notebooks(sys.argv[1:])   
+    merge_notebooks(['Preface.ipynb', 'Signals_and_Noise.ipynb','g-h_filter.ipynb', 'discrete_bayes.ipynb', 'Gaussians.ipynb', 'Kalman_Filters.ipynb', 'Multidimensional_Kalman_Filters.ipynb', 'Kalman_Filter_Math.ipynb', 'Extended_Kalman_Filters.ipynb', 'Unscented_Kalman_Filter.ipynb'])
+#    merge_notebooks(['Preface.ipynb', 'Signals_and_Noise.ipynb' g-h_filter.ipynb discrete_bayes.ipynb Gaussians.ipynb Kalman_Filters.ipynb Multidimensional_Kalman_Filters.ipynb Kalman_Filter_Math.ipynb Designing_Kalman_Filters.ipynb Extended_Kalman_Filters.ipynb Unscented_Kalman_Filter.ipynb'])
+