Add transpose and fix issue with index for graph.

controllers/report.py

@@ -17,7 +17,7 @@ from StringIO import StringIO
 # A specific set of keys use to to tune matplotlib rendering
 # These keys are in the plot configuration but are not arguments
 # of the DataFrame.plot method
-PLT_KEYS = ('index', 'xlabel', 'ylabel')
+PLT_KEYS = ('index', 'transpose', 'xlabel', 'ylabel')
 
 
 def graph_extjs():
@@ -79,8 +79,8 @@ def graph_mpl():
         msg = "No %s named %s" % (tablename, graph.report_name)
         return INLINE_ALERT % ("Error", msg)
     
-    # instantiate the lists/metrics
     try:
+        # instantiate the lists/metrics
         config = db[tablename][id]
         
         if  tablename == "lists":
@@ -92,6 +92,8 @@ def graph_mpl():
         elif tablename == "metrics2d":
             report = Metric2D(config, selector)
 
+        df = report.to_df()
+
         # decode the graph configuration
         kwargs = json.loads(graph.plot)
         
@@ -99,16 +101,19 @@ def graph_mpl():
         plt_cfg = Storage()
         for k in PLT_KEYS:
             plt_cfg[k] = kwargs.pop(k, None)
-                
+        
+        # transpose
+        if plt_cfg.transpose:
+            df = df.T
+                    
         # generate the plot using a specific set of columns
-        df = report.to_df()
-        if plt_cfg.index:
+        if plt_cfg.index and len(plt_cfg.index) <= len(df.columns):
             ax = df.ix[:,plt_cfg.index].plot(**kwargs)
-        
-        # generate a plot using all columns of the DataFrame    
+            
+        # generate the plot using all columns
         else:
-            ax = df.T.plot(**kwargs)
-
+            ax = df.ix[:,:].plot(**kwargs)
+                
     except (IndexError, TypeError, ValueError) as e:
         return INLINE_ALERT % ("Error", e)
     

documentations/userguide/appendix_graph.rst

@@ -58,6 +58,10 @@ The basic keywords
 ``grid`` or ``legend``
     deactivate grid (legend)  when it is ``false``.
 
+``colormap``
+    set the colormap indentify by its name.
+    Possible values in http://matplotlib.org/users/colormaps.html
+
 ``xerr`` and ``yerr``.
     set errors bars.
 
@@ -77,7 +81,10 @@ The basic keywords
 ``xlabel``, ``ylabel``
     set the label along the *x* and *y*-axis respectively
 
+``tranpose``
+    boolean value to exchange *x* and *y*-axis.
 
+    
 Column addressing
 -----------------