pandas: powerful Python data analysis toolkit - 0.13.1
aligns the input to the Panel In [20]: p = pd.Panel(np.arange(16).reshape(2,4,2), ....: items=[’Item1’,’Item2’], ....: major_axis=pd.date_range(’2001/1/12’,periods=4), ....: minor_axis=[’A’,’B’],dtype=’float64’) ’pandas.core.panel.Panel’> Dimensions: 2 (items) x 4 (major_axis) x 2 (minor_axis) Items axis: Item1 to Item2 Major_axis axis: 2001-01-12 00:00:00 to 2001-01-15 00:00:00 1.2. v0.13.0 (January 3, 2014) 15 x 3 (minor_axis) Items axis: Item1 to Item2 Major_axis axis: 2001-01-12 00:00:00 to 2001-01-15 00:00:00 Minor_axis axis: A to C In [24]: p.loc[:,:,’C’] Out[24]: Item1 Item2 2001-01-12 30 32 2001-01-130 码力 | 1219 页 | 4.81 MB | 1 年前3pandas: powerful Python data analysis toolkit - 0.12
w dtype: object In [52]: s 0 NaN 1 NaN 2 NaN 3 w dtype: object In [53]: s.dropna().values.item() == ’w’ True The last element yielded by the iterator will be a Series containing the last element 0.236846 2000-01-08 0.323316 -0.584380 0.545657 In [50]: wp = Panel(randn(2, 5, 4), items=[’Item1’, ’Item2’], ....: major_axis=date_range(’1/1/2000’, periods=5), ....: minor_axis=[’A’, ’B’, ’C’, ’D’]) ’pandas.core.panel.Panel’> Dimensions: 2 (items) x 5 (major_axis) x 4 (minor_axis) Items axis: Item1 to Item2 Major_axis axis: 2000-01-01 00:00:00 to 2000-01-05 00:00:00 Minor_axis axis: A to D # storing0 码力 | 657 页 | 3.58 MB | 1 年前3pandas: powerful Python data analysis toolkit - 0.14.0
(GH6734) • stack and unstack now raise a ValueError when the level keyword refers to a non-unique item in the Index (previously raised a KeyError). (GH6738) • drop unused order argument from Series.sort; with xlwt (GH3710) • Refactor Block classes removing Block.items attributes to avoid duplication in item handling (GH6745, GH6988). • Testing statements updated to use specialized asserts (GH6175) 1.1 aligns the input to the Panel In [20]: p = pd.Panel(np.arange(16).reshape(2,4,2), ....: items=[’Item1’,’Item2’], ....: major_axis=pd.date_range(’2001/1/12’,periods=4), ....: minor_axis=[’A’,’B’],dtype=’float64’)0 码力 | 1349 页 | 7.67 MB | 1 年前3Oracle VM VirtualBox 6.1.6 User Manual
can start Oracle VM VirtualBox as follows: • On a Windows host, in the Programs menu, click on the item in the VirtualBox group. On some Windows platforms, you can also enter VirtualBox in the search box VirtualBox item in the Applications folder. You may want to drag this item onto your Dock. • On a Linux or Oracle Solaris host, depending on your desktop environment, an Oracle VM VirtualBox item may have you take a snapshot of the machine, the list of snapshots will be empty except for the Current State item, which represents the “now” point in the lifetime of the virtual machine. 1.10.1 Taking, Restoring0 码力 | 392 页 | 4.67 MB | 1 年前3pandas: powerful Python data analysis toolkit - 0.15
(GH7762, GH7032). • Bug in Series.str.cat with an index which was filtered as to not include the first item (GH7857) • Bug in Timestamp cannot parse nanosecond from string (GH7878) • Bug in Timestamp with a DataFrame which has unexpected results. Such indexing is no longer permitted (GH8444) • Bug in item assignment of a DataFrame with multi-index columns where right-hand-side columns were not aligned TypeError on inplace-setting with a .where and a non np.nan value as this is inconsistent with a set-item expression like df[mask] = None (GH7656) 1.4.2 Enhancements • Add dropna argument to value_counts0 码力 | 1579 页 | 9.15 MB | 1 年前3pandas: powerful Python data analysis toolkit - 0.15.1
(GH7762, GH7032). • Bug in Series.str.cat with an index which was filtered as to not include the first item (GH7857) • Bug in Timestamp cannot parse nanosecond from string (GH7878) • Bug in Timestamp with a DataFrame which has unexpected results. Such indexing is no longer permitted (GH8444) • Bug in item assignment of a DataFrame with multi-index columns where right-hand-side columns were not aligned TypeError on inplace-setting with a .where and a non np.nan value as this is inconsistent with a set-item expression like df[mask] = None (GH7656) 1.3.2 Enhancements • Add dropna argument to value_counts0 码力 | 1557 页 | 9.10 MB | 1 年前3Oracle VM VirtualBox 6.1.32 User Manual
can start Oracle VM VirtualBox as follows: • On a Windows host, in the Programs menu, click on the item in the VirtualBox group. On some Windows platforms, you can also enter VirtualBox in the search box VirtualBox item in the Applications folder. You may want to drag this item onto your Dock. • On a Linux or Oracle Solaris host, depending on your desktop environment, an Oracle VM VirtualBox item may have you take a snapshot of the machine, the list of snapshots will be empty except for the Current State item, which represents the “now” point in the lifetime of the virtual machine. 1.10.1 Taking, Restoring0 码力 | 407 页 | 4.76 MB | 1 年前3Oracle VM VirtualBox 6.1.12 User Manual
can start Oracle VM VirtualBox as follows: • On a Windows host, in the Programs menu, click on the item in the VirtualBox group. On some Windows platforms, you can also enter VirtualBox in the search box VirtualBox item in the Applications folder. You may want to drag this item onto your Dock. • On a Linux or Oracle Solaris host, depending on your desktop environment, an Oracle VM VirtualBox item may have you take a snapshot of the machine, the list of snapshots will be empty except for the Current State item, which represents the “now” point in the lifetime of the virtual machine. 1.10.1 Taking, Restoring0 码力 | 396 页 | 4.67 MB | 1 年前3Oracle VM VirtualBox 6.1.30 User Manual
can start Oracle VM VirtualBox as follows: • On a Windows host, in the Programs menu, click on the item in the VirtualBox group. On some Windows platforms, you can also enter VirtualBox in the search box VirtualBox item in the Applications folder. You may want to drag this item onto your Dock. • On a Linux or Oracle Solaris host, depending on your desktop environment, an Oracle VM VirtualBox item may have you take a snapshot of the machine, the list of snapshots will be empty except for the Current State item, which represents the “now” point in the lifetime of the virtual machine. 1.10.1 Taking, Restoring0 码力 | 406 页 | 4.75 MB | 1 年前3Oracle VM VirtualBox 6.1.18 User Manual
can start Oracle VM VirtualBox as follows: • On a Windows host, in the Programs menu, click on the item in the VirtualBox group. On some Windows platforms, you can also enter VirtualBox in the search box VirtualBox item in the Applications folder. You may want to drag this item onto your Dock. • On a Linux or Oracle Solaris host, depending on your desktop environment, an Oracle VM VirtualBox item may have you take a snapshot of the machine, the list of snapshots will be empty except for the Current State item, which represents the “now” point in the lifetime of the virtual machine. 1.10.1 Taking, Restoring0 码力 | 400 页 | 4.74 MB | 1 年前3
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