Merge commit 'v0.9.1rc1-27-ge374f0f' into debian

* commit 'v0.9.1rc1-27-ge374f0f': (52 commits)
  BUG: axes.color_cycle from mpl rcParams should not be joined as single string
  BUG: icol duplicate columns with integer sequence failure. close pandas-dev#2228
  TST: unit test for pandas-dev#2214
  BUG: coerce ndarray dtype to object when comparing series
  ENH: make vbench_suite/run_suite executable
  ENH: Use __file__ to determine REPO_PATH in vb_suite/suite.py
  BUG: 1 ** NA issue in computing new fill value in SparseSeries. close pandas-dev#2220
  BUG: make inplace semantics of DataFrame.where consistent. pandas-dev#2230
  BUG: fix internal error in constructing DataFrame.values with duplicate column names. close pandas-dev#2236
  added back mask method that does condition inversion added condition testing to where that raised ValueError on an invalid condition (e.g. not an ndarray like object) added tests for same
  in core/frame.py
  TST: getting column from and applying op to a df should commute
  TST: add dual ( x op y <-> y op x ) tests for arith operators
  BUG: Incorrect error message due to zero based levels. close pandas-dev#2226
  fixed file modes for core/frame.py, test/test_frame.py
  relaxed __setitem__ restriction on boolean indexing a frame on an equal sized frame
  in core/frame.py
  ENH: warn user when invoking to_dict() on df with non-unique columns
  BUG: modify df.iteritems to support duplicate column labels pandas-dev#2219
  TST: df.iteritems() should yield Series even with non-unique column labels
  ...

Author: yarikoptic

Diff for: RELEASE.rst

@@ -33,6 +33,7 @@ pandas 0.9.1
   - New `top` and `bottom` options for handling NAs in rank (#1508, #2159)
   - Add `where` and `mask` functions to DataFrame (#2109, #2151)
   - Add `at_time` and `between_time` functions to DataFrame (#2149)
+  - Add flexible `pow` and `rpow` methods to DataFrame (#2190)
 
 **API Changes**
 
@@ -55,6 +56,8 @@ pandas 0.9.1
   - Make .drop(...) work with non-unique indexes (#2101)
   - Improve performance of Series/DataFrame.diff (re: #2087)
   - Support unary ~ (__invert__) in DataFrame (#2110)
+  - Turn off pandas-style tick locators and formatters (#2205)
+  - DataFrame[DataFrame] uses DataFrame.where to compute masked frame (#2230)
 
 **Bug fixes**
 
@@ -92,7 +95,14 @@ pandas 0.9.1
   - Fix Series and DataFrame.diff for integer dtypes (#2087, #2174)
   - Fix bug when taking intersection of DatetimeIndex with empty index (#2129)
   - Pass through timezone information when calling DataFrame.align (#2127)
-
+  - Properly sort when joining on datetime64 values (#2196)
+  - Fix indexing bug in which False/True were being coerced to 0/1 (#2199)
+  - Many unicode formatting fixes (#2201)
+  - Fix improper MultiIndex conversion issue when assigning
+    e.g. DataFrame.index (#2200)
+  - Fix conversion of mixed-type DataFrame to ndarray with dup columns (#2236)
+  - Fix duplicate columns issue (#2218, #2219)
+  - Fix SparseSeries.__pow__ issue with NA input (#2220)
 
 pandas 0.9.0
 ============

Diff for: doc/make.py

@@ -49,6 +49,33 @@ def upload_stable_pdf():
                  ':/usr/share/nginx/pandas/pandas-docs/stable/'):
         raise SystemExit('PDF upload to stable failed')
 
+def upload_prev(ver, doc_root='./'):
+    'push a copy of older release to appropriate version directory'
+    local_dir = doc_root + 'build/html'
+    remote_dir = '/usr/share/nginx/pandas/pandas-docs/version/%s/' % ver
+    cmd = 'cd %s; rsync -avz . [email protected]:%s -essh'
+    cmd = cmd % (local_dir, remote_dir)
+    print cmd
+    if os.system(cmd):
+        raise SystemExit('Upload to %s from %s failed' % (remote_dir, local_dir))
+
+    local_dir = doc_root + 'build/latex'
+    pdf_cmd = 'cd %s; scp pandas.pdf [email protected]:%s'
+    pdf_cmd = pdf_cmd % (local_dir, remote_dir)
+    if os.system(pdf_cmd):
+        raise SystemExit('Upload PDF to %s from %s failed' % (ver, doc_root))
+
+def build_prev(ver):
+    if os.system('git checkout v%s' % ver) != 1:
+        os.chdir('..')
+        os.system('python setup.py clean')
+        os.system('python setup.py build_ext --inplace')
+        os.chdir('doc')
+        os.system('python make.py clean')
+        os.system('python make.py html')
+        os.system('python make.py latex')
+        os.system('git checkout master')
+
 def clean():
     if os.path.exists('build'):
         shutil.rmtree('build')
@@ -201,7 +228,15 @@ def _get_config():
 # current_dir = os.getcwd()
 # os.chdir(os.path.dirname(os.path.join(current_dir, __file__)))
 
-if len(sys.argv)>1:
+if len(sys.argv) > 2:
+    ftype = sys.argv[1]
+    ver = sys.argv[2]
+
+    if ftype == 'build_previous':
+        build_prev(ver)
+    if ftype == 'upload_previous':
+        upload_prev(ver)
+elif len(sys.argv) > 1:
     for arg in sys.argv[1:]:
         func = funcd.get(arg)
         if func is None:

Diff for: doc/source/faq.rst

@@ -21,6 +21,7 @@ Frequently Asked Questions (FAQ)
    import matplotlib.pyplot as plt
    plt.close('all')
 
+.. _ref-scikits-migration:
 
 Migrating from scikits.timeseries to pandas >= 0.8.0
 ----------------------------------------------------

Diff for: doc/source/related.rst

@@ -45,3 +45,13 @@ customizable by the user (so 5-minutely data is easier to do with pandas for
 example).
 
 We are aiming to merge these libraries together in the near future.
+
+Progress:
+
+  - It has a collection of moving window statistics implemented in
+    `Bottleneck <http://pandas.pydata.org/developers.html#development-roadmap>`__
+  - `Outstanding issues <https://github.com/pydata/pandas/issues?labels=timeseries&milestone=&page=1&state=open>`__
+
+Summarising, Pandas offers superior functionality due to its combination with the :py:class:`pandas.DataFrame`.
+
+An introduction for former users of :mod:`scikits.timeseries` is provided in the :ref:`migration guide <ref-scikits-migration>`.

Diff for: doc/source/v0.9.1.txt

@@ -60,6 +60,9 @@ New features
                  parse_cols='A:D')
 
 
+  - Added option to disable pandas-style tick locators and formatters
+    using `series.plot(x_compat=True)` or `pandas.plot_params['x_compat'] =
+    True` (GH2205_)
   - Existing TimeSeries methods `at_time` and `between_time` were added to
     DataFrame (GH2149_)
   - DataFrame.dot can now accept ndarrays (GH2042_)
@@ -122,6 +125,7 @@ on GitHub for a complete list.
 .. _GH2124: https://github.com/pydata/pandas/issues/2124
 .. _GH2110: https://github.com/pydata/pandas/issues/2110
 .. _GH2184: https://github.com/pydata/pandas/issues/2184
+.. _GH2205: https://github.com/pydata/pandas/issues/2205
 
 .. _GH2181: https://github.com/pydata/pandas/issues/2181
 .. _GH2180: https://github.com/pydata/pandas/issues/2180
@@ -197,4 +201,3 @@ on GitHub for a complete list.
 .. _GH1959: https://github.com/pydata/pandas/issues/1959
 .. _GH1890: https://github.com/pydata/pandas/issues/1890
 .. _GH1555: https://github.com/pydata/pandas/issues/1555
-

Diff for: doc/source/visualization.rst

@@ -123,7 +123,7 @@ To plot data on a secondary y-axis, use the ``secondary_y`` keyword:
 Selective Plotting on Secondary Y-axis
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
-To plot some columns in a DataFrame, give the column names to the `secondary_y`
+To plot some columns in a DataFrame, give the column names to the ``secondary_y``
 keyword:
 
 .. ipython:: python
@@ -135,7 +135,7 @@ keyword:
 
 Note that the columns plotted on the secondary y-axis is automatically marked
 with "(right)" in the legend. To turn off the automatic marking, use the
-`mark_right=False` keyword:
+``mark_right=False`` keyword:
 
 .. ipython:: python
 
@@ -145,6 +145,50 @@ with "(right)" in the legend. To turn off the automatic marking, use the
    df.plot(secondary_y=['A', 'B'], mark_right=False)
 
 
+Suppressing tick resolution adjustment
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Pandas includes automatically tick resolution adjustment for regular frequency
+time-series data. For limited cases where pandas cannot infer the frequency
+information (e.g., in an externally created ``twinx``), you can choose to
+suppress this behavior for alignment purposes.
+
+Here is the default behavior, notice how the x-axis tick labelling is performed:
+
+.. ipython:: python
+
+   plt.figure()
+
+   @savefig ser_plot_suppress.png width=4.5in
+   df.A.plot()
+
+
+Using the ``x_compat`` parameter, you can suppress this bevahior:
+
+.. ipython:: python
+
+   plt.figure()
+
+   @savefig ser_plot_suppress_parm.png width=4.5in
+   df.A.plot(x_compat=True)
+
+
+If you have more than one plot that needs to be suppressed, the ``use`` method
+in ``pandas.plot_params`` can be used in a `with statement`:
+
+.. ipython:: python
+
+   import pandas as pd
+
+   plt.figure()
+
+   @savefig ser_plot_suppress_context.png width=4.5in
+   with pd.plot_params.use('x_compat', True):
+       df.A.plot(color='r')
+       df.B.plot(color='g')
+       df.C.plot(color='b')
+
+
 Targeting different subplots
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 

Diff for: pandas/__init__.py

@@ -36,5 +36,5 @@
 from pandas.tools.describe import value_range
 from pandas.tools.merge import merge, concat, ordered_merge
 from pandas.tools.pivot import pivot_table, crosstab
-from pandas.tools.plotting import scatter_matrix
+from pandas.tools.plotting import scatter_matrix, plot_params
 from pandas.tools.tile import cut, qcut

Diff for: pandas/core/common.py

@@ -852,6 +852,13 @@ def is_integer_dtype(arr_or_dtype):
             (issubclass(tipo, np.datetime64) or
              issubclass(tipo, np.timedelta64)))
 
+def _is_int_or_datetime_dtype(arr_or_dtype):
+    # also timedelta64
+    if isinstance(arr_or_dtype, np.dtype):
+        tipo = arr_or_dtype.type
+    else:
+        tipo = arr_or_dtype.dtype.type
+    return issubclass(tipo, np.integer)
 
 def is_datetime64_dtype(arr_or_dtype):
     if isinstance(arr_or_dtype, np.dtype):
@@ -1140,6 +1147,9 @@ def pprint_thing(thing, _nest_lvl=0):
     from pandas.core.format import print_config
     if thing is None:
         result = ''
+    elif (py3compat.PY3 and hasattr(thing,'__next__')) or \
+         hasattr(thing,'next'):
+        return unicode(thing)
     elif (isinstance(thing, dict) and
           _nest_lvl < print_config.pprint_nest_depth):
         result = _pprint_dict(thing, _nest_lvl)

Diff for: pandas/core/format.py

@@ -268,7 +268,8 @@ def to_string(self, force_unicode=False):
         if len(frame.columns) == 0 or len(frame.index) == 0:
             info_line = (u'Empty %s\nColumns: %s\nIndex: %s'
                          % (type(self.frame).__name__,
-                            frame.columns, frame.index))
+                            com.pprint_thing(frame.columns),
+                            com.pprint_thing(frame.index)))
             text = info_line
         else:
             strcols = self._to_str_columns(force_unicode)
@@ -405,13 +406,6 @@ def _get_column_name_list(self):
             names.append('' if columns.name is None else columns.name)
         return names
 
-
-def _str(x):
-    if not isinstance(x, basestring):
-        return str(x)
-    return x
-
-
 class HTMLFormatter(object):
 
     indent_delta = 2
@@ -436,7 +430,7 @@ def _maybe_bold_row(x):
         self._maybe_bold_row = _maybe_bold_row
 
     def write(self, s, indent=0):
-        self.elements.append(' ' * indent + _str(s))
+        self.elements.append(' ' * indent + com.pprint_thing(s))
 
     def write_th(self, s, indent=0, tags=None):
         return self._write_cell(s, kind='th', indent=indent, tags=tags)
@@ -449,7 +443,7 @@ def _write_cell(self, s, kind='td', indent=0, tags=None):
             start_tag = '<%s %s>' % (kind, tags)
         else:
             start_tag = '<%s>' % kind
-        self.write('%s%s</%s>' % (start_tag, _str(s), kind), indent)
+        self.write('%s%s</%s>' % (start_tag, com.pprint_thing(s), kind), indent)
 
     def write_tr(self, line, indent=0, indent_delta=4, header=False,
                  align=None, tags=None):