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Dec 10, 2018
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DOC: Fix dsintro.rst flake8 issues #24187

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705994e
Repair doc/source/dsintro.rst flake8 issues, remove exclusion
addisonlynch Dec 9, 2018
aee19e8
Remove noqa
addisonlynch Dec 9, 2018
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61 changes: 30 additions & 31 deletions doc/source/dsintro.rst
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Original file line number Diff line number Diff line change
Expand Up @@ -71,7 +71,7 @@ Series can be instantiated from dicts:

.. ipython:: python

d = {'b' : 1, 'a' : 0, 'c' : 2}
d = {'b': 1, 'a': 0, 'c': 2}
pd.Series(d)

.. note::
Expand All @@ -92,7 +92,7 @@ index will be pulled out.

.. ipython:: python

d = {'a' : 0., 'b' : 1., 'c' : 2.}
d = {'a': 0., 'b': 1., 'c': 2.}
pd.Series(d)
pd.Series(d, index=['b', 'c', 'd', 'a'])

Expand Down Expand Up @@ -304,8 +304,8 @@ keys.

.. ipython:: python

d = {'one' : pd.Series([1., 2., 3.], index=['a', 'b', 'c']),
'two' : pd.Series([1., 2., 3., 4.], index=['a', 'b', 'c', 'd'])}
d = {'one': pd.Series([1., 2., 3.], index=['a', 'b', 'c']),
'two': pd.Series([1., 2., 3., 4.], index=['a', 'b', 'c', 'd'])}
df = pd.DataFrame(d)
df

Expand Down Expand Up @@ -334,8 +334,8 @@ result will be ``range(n)``, where ``n`` is the array length.

.. ipython:: python

d = {'one' : [1., 2., 3., 4.],
'two' : [4., 3., 2., 1.]}
d = {'one': [1., 2., 3., 4.],
'two': [4., 3., 2., 1.]}
pd.DataFrame(d)
pd.DataFrame(d, index=['a', 'b', 'c', 'd'])

Expand All @@ -346,8 +346,8 @@ This case is handled identically to a dict of arrays.

.. ipython:: python

data = np.zeros((2,), dtype=[('A', 'i4'),('B', 'f4'),('C', 'a10')])
data[:] = [(1,2.,'Hello'), (2,3.,"World")]
data = np.zeros((2, ), dtype=[('A', 'i4'), ('B', 'f4'), ('C', 'a10')])
data[:] = [(1, 2., 'Hello'), (2, 3., "World")]

pd.DataFrame(data)
pd.DataFrame(data, index=['first', 'second'])
Expand Down Expand Up @@ -507,17 +507,15 @@ derived from existing columns.

iris = pd.read_csv('data/iris.data')
iris.head()

(iris.assign(sepal_ratio = iris['SepalWidth'] / iris['SepalLength'])
(iris.assign(sepal_ratio=iris['SepalWidth'] / iris['SepalLength'])
.head())

In the example above, we inserted a precomputed value. We can also pass in
a function of one argument to be evaluated on the DataFrame being assigned to.

.. ipython:: python

iris.assign(sepal_ratio = lambda x: (x['SepalWidth'] /
x['SepalLength'])).head()
iris.assign(sepal_ratio=lambda x: (x['SepalWidth'] / x['SepalLength'])).head()

``assign`` **always** returns a copy of the data, leaving the original
DataFrame untouched.
Expand All @@ -532,8 +530,8 @@ greater than 5, calculate the ratio, and plot:

@savefig basics_assign.png
(iris.query('SepalLength > 5')
.assign(SepalRatio = lambda x: x.SepalWidth / x.SepalLength,
PetalRatio = lambda x: x.PetalWidth / x.PetalLength)
.assign(SepalRatio=lambda x: x.SepalWidth / x.SepalLength,
PetalRatio=lambda x: x.PetalWidth / x.PetalLength)
.plot(kind='scatter', x='SepalRatio', y='PetalRatio'))

Since a function is passed in, the function is computed on the DataFrame
Expand Down Expand Up @@ -705,8 +703,8 @@ Boolean operators work as well:

.. ipython:: python

df1 = pd.DataFrame({'a' : [1, 0, 1], 'b' : [0, 1, 1] }, dtype=bool)
df2 = pd.DataFrame({'a' : [0, 1, 1], 'b' : [1, 1, 0] }, dtype=bool)
df1 = pd.DataFrame({'a': [1, 0, 1], 'b': [0, 1, 1]}, dtype=bool)
df2 = pd.DataFrame({'a': [0, 1, 1], 'b': [1, 1, 0]}, dtype=bool)
df1 & df2
df1 | df2
df1 ^ df2
Expand Down Expand Up @@ -746,7 +744,7 @@ Similarly, the dot method on Series implements dot product:

.. ipython:: python

s1 = pd.Series(np.arange(5,10))
s1 = pd.Series(np.arange(5, 10))
s1.dot(s1)

DataFrame is not intended to be a drop-in replacement for ndarray as its
Expand Down Expand Up @@ -777,7 +775,7 @@ R package):
:okwarning:

# restore GlobalPrintConfig
pd.reset_option('^display\.')
pd.reset_option('^display\.') # noqa: W605

However, using ``to_string`` will return a string representation of the
DataFrame in tabular form, though it won't always fit the console width:
Expand All @@ -798,22 +796,22 @@ option:

.. ipython:: python

pd.set_option('display.width', 40) # default is 80
pd.set_option('display.width', 40) # default is 80

pd.DataFrame(np.random.randn(3, 12))

You can adjust the max width of the individual columns by setting ``display.max_colwidth``

.. ipython:: python

datafile={'filename': ['filename_01','filename_02'],
'path': ["media/user_name/storage/folder_01/filename_01",
"media/user_name/storage/folder_02/filename_02"]}
datafile = {'filename': ['filename_01', 'filename_02'],
'path': ["media/user_name/storage/folder_01/filename_01",
"media/user_name/storage/folder_02/filename_02"]}

pd.set_option('display.max_colwidth',30)
pd.set_option('display.max_colwidth', 30)
pd.DataFrame(datafile)

pd.set_option('display.max_colwidth',100)
pd.set_option('display.max_colwidth', 100)
pd.DataFrame(datafile)

.. ipython:: python
Expand All @@ -833,8 +831,8 @@ accessed like an attribute:

.. ipython:: python

df = pd.DataFrame({'foo1' : np.random.randn(5),
'foo2' : np.random.randn(5)})
df = pd.DataFrame({'foo1': np.random.randn(5),
'foo2': np.random.randn(5)})
df
df.foo1

Expand All @@ -843,7 +841,7 @@ completion mechanism so they can be tab-completed:

.. code-block:: ipython

In [5]: df.fo<TAB>
In [5]: df.fo<TAB> # noqa: E225, E999
df.foo1 df.foo2

.. _basics.panel:
Expand Down Expand Up @@ -890,8 +888,8 @@ From dict of DataFrame objects
.. ipython:: python
:okwarning:

data = {'Item1' : pd.DataFrame(np.random.randn(4, 3)),
'Item2' : pd.DataFrame(np.random.randn(4, 2))}
data = {'Item1': pd.DataFrame(np.random.randn(4, 3)),
'Item2': pd.DataFrame(np.random.randn(4, 2))}
pd.Panel(data)

Note that the values in the dict need only be **convertible to
Expand Down Expand Up @@ -947,8 +945,9 @@ From DataFrame using ``to_panel`` method
.. ipython:: python
:okwarning:

midx = pd.MultiIndex(levels=[['one', 'two'], ['x','y']], codes=[[1,1,0,0],[1,0,1,0]])
df = pd.DataFrame({'A' : [1, 2, 3, 4], 'B': [5, 6, 7, 8]}, index=midx)
midx = pd.MultiIndex(levels=[['one', 'two'], ['x', 'y']],
codes=[[1, 1, 0, 0], [1, 0, 1, 0]])
df = pd.DataFrame({'A': [1, 2, 3, 4], 'B': [5, 6, 7, 8]}, index=midx)
df.to_panel()

.. _dsintro.panel_item_selection:
Expand Down
1 change: 0 additions & 1 deletion setup.cfg
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Original file line number Diff line number Diff line change
Expand Up @@ -79,7 +79,6 @@ exclude =
doc/source/10min.rst
doc/source/basics.rst
doc/source/contributing_docstring.rst
doc/source/dsintro.rst
doc/source/enhancingperf.rst
doc/source/groupby.rst
doc/source/indexing.rst
Expand Down