大约有 39,550 项符合查询结果(耗时:0.0609秒) [XML]
The preferred way of creating a new element with jQuery
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answered May 16 '12 at 13:22
gdoron is supporting Monicagdoron is supporting Monica
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Find column whose name contains a specific string
...spike-2': [1,2,3], 'hey spke': [4,5,6], 'spiked-in': [7,8,9], 'no': [10,11,12]}
df = pd.DataFrame(data)
spike_cols = [col for col in df.columns if 'spike' in col]
print(list(df.columns))
print(spike_cols)
Output:
['hey spke', 'no', 'spike-2', 'spiked-in']
['spike-2', 'spiked-in']
Explanation:
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Add a column to a table, if it does not already exist
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answered Jan 15 '12 at 15:24
Lieven KeersmaekersLieven Keersmaekers
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How to organize large R programs?
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Martijn Pieters♦
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answered Aug 12 '09 at 14:09
Dirk Eddel...
How can I resize an image dynamically with CSS as the browser width/height changes?
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edited Jun 20 at 9:12
Community♦
111 silver badge
answered Feb 25 '12 at 15:26
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Converting strings to floats in a DataFrame
...,'foo'])))
In [11]: df
Out[11]:
A B
0 1.0 1.0
1 1 foo
In [12]: df.dtypes
Out[12]:
A object
B object
dtype: object
In [13]: df.convert_objects(convert_numeric=True)
Out[13]:
A B
0 1 1
1 1 NaN
In [14]: df.convert_objects(convert_numeric=True).dtypes
Out[14]:
A f...
How to make Eclipse behave well in the Windows 7 taskbar?
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edited May 23 '17 at 12:17
Community♦
111 silver badge
answered Mar 14 '11 at 15:22
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Favorite Django Tips & Features?
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– Paolo Bergantino
Feb 18 '09 at 7:12
19
This is such a good idea that I still have a hard time ...
Truncate a string straight JavaScript
...n handle.
– not2qubit
Jan 26 '18 at 12:12
1
MDN docs are better than W3schools
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What is the purpose of the HTML “no-js” class?
....com/articles/…
– Hannele
Feb 28 '12 at 15:11
47
Since Modernizr replaces "no-js" with "js", yo...
