matplotlib-checkins

SF.net SVN: matplotlib:[8742] branches/v1_0_maint/lib/matplotlib/finance.py

[<jd...@us...>]

Revision: 8742
          http://matplotlib.svn.sourceforge.net/matplotlib/?rev=8742&view=rev
Author:   jdh2358
Date:     2010-10-12 16:17:16 +0000 (Tue, 12 Oct 2010)

Log Message:
-----------
fixed mpl finance buglets identified by Keith Goodman

Modified Paths:
--------------
    branches/v1_0_maint/lib/matplotlib/finance.py

Modified: branches/v1_0_maint/lib/matplotlib/finance.py
===================================================================
--- branches/v1_0_maint/lib/matplotlib/finance.py	2010-10-11 14:04:43 UTC (rev 8741)
+++ branches/v1_0_maint/lib/matplotlib/finance.py	2010-10-12 16:17:16 UTC (rev 8742)
@@ -4,7 +4,7 @@
 
 """
 #from __future__ import division
-import os, time, warnings
+import os, warnings
 from urllib2 import urlopen
 
 try:
@@ -17,7 +17,7 @@
 
 from matplotlib import verbose, get_configdir
 from matplotlib.dates import date2num
-from matplotlib.cbook import iterable, is_string_like
+from matplotlib.cbook import iterable
 from matplotlib.collections import LineCollection, PolyCollection
 from matplotlib.colors import colorConverter
 from matplotlib.lines import Line2D, TICKLEFT, TICKRIGHT
@@ -218,7 +218,7 @@
         if len(ret) == 0:
             return None
     except IOError, exc:
-        warnings.warn('urlopen() failure\n' + url + '\n' + exc.strerror[1])
+        warnings.warn('fh failure\n%s'%(exc.strerror[1]))
         return None
 
     return ret


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SF.net SVN: matplotlib:[8747] branches/v1_0_maint/lib/matplotlib/finance.py

[<jd...@us...>]

Revision: 8747
          http://matplotlib.svn.sourceforge.net/matplotlib/?rev=8747&view=rev
Author:   jdh2358
Date:     2010-10-12 17:21:39 +0000 (Tue, 12 Oct 2010)

Log Message:
-----------
tweak volume docstring for yahoo finance

Modified Paths:
--------------
    branches/v1_0_maint/lib/matplotlib/finance.py

Modified: branches/v1_0_maint/lib/matplotlib/finance.py
===================================================================
--- branches/v1_0_maint/lib/matplotlib/finance.py	2010-10-12 16:44:07 UTC (rev 8746)
+++ branches/v1_0_maint/lib/matplotlib/finance.py	2010-10-12 17:21:39 UTC (rev 8747)
@@ -47,13 +47,17 @@
     Parse the historical data in file handle fh from yahoo finance.
 
     *adjusted*
-      If True (default) replace open, close, high, low, and volume with
-      their adjusted values.
-      The adjustment is by a scale factor, S = adjusted_close/close.
-      Adjusted volume is actual volume divided by S;
-      Adjusted prices are actual prices multiplied by S.  Hence,
-      the product of price and volume is unchanged by the adjustment.
+      If True (default) replace open, close, high, and low prices with
+      their adjusted values. The adjustment is by a scale factor, S =
+      adjusted_close/close. Adjusted prices are actual prices
+      multiplied by S.
 
+      Volume is not adjusted as it is already backward split adjusted
+      by Yahoo. If you want to compute dollars traded, multiply volume
+      by the adjusted close, regardless of whether you choose adjusted
+      = True|False.
+
+    
     *asobject*
       If False (default for compatibility with earlier versions)
       return a list of tuples containing


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SF.net SVN: matplotlib:[8884] branches/v1_0_maint/lib/matplotlib/finance.py

[<ef...@us...>]

Revision: 8884
          http://matplotlib.svn.sourceforge.net/matplotlib/?rev=8884&view=rev
Author:   efiring
Date:     2011-01-04 20:52:42 +0000 (Tue, 04 Jan 2011)

Log Message:
-----------
Finance: change volume to float; close  3108059

Modified Paths:
--------------
    branches/v1_0_maint/lib/matplotlib/finance.py

Modified: branches/v1_0_maint/lib/matplotlib/finance.py
===================================================================
--- branches/v1_0_maint/lib/matplotlib/finance.py	2011-01-04 20:36:21 UTC (rev 8883)
+++ branches/v1_0_maint/lib/matplotlib/finance.py	2011-01-04 20:52:42 UTC (rev 8884)
@@ -38,7 +38,7 @@
                      ('close', np.float),
                      ('high', np.float),
                      ('low', np.float),
-                     ('volume', np.int),
+                     ('volume', np.float),
                      ('aclose', np.float)])
 
 
@@ -57,7 +57,7 @@
       by the adjusted close, regardless of whether you choose adjusted
       = True|False.
 
-    
+
     *asobject*
       If False (default for compatibility with earlier versions)
       return a list of tuples containing
@@ -101,7 +101,7 @@
         dt = datetime.date(*[int(val) for val in datestr.split('-')])
         dnum = date2num(dt)
         open, high, low, close =  [float(val) for val in vals[1:5]]
-        volume = int(vals[5])
+        volume = float(vals[5])
         aclose = float(vals[6])
 
         results.append((dt, dt.year, dt.month, dt.day,


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