大约有 1,500 项符合查询结果（耗时：0.0316秒） [XML]
Android ImageView Zoom-in and Zoom-Out
... Simulant
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answered Jul 11 '11 at 13:01
Amandeep singhAmandeep singh
1...
Apply multiple functions to multiple groupby columns
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2 0.843026 0.936169 0.926090 0.041722 1
3 0.635846 0.439175 0.828787 0.714123 1
A dictionary mapped from column names to aggregation functions is still a perfectly good way to perform an aggregation.
df.groupby('group').agg({'a':['sum', 'max'],
'b':'me...
How to understand Locality Sensitive Hashing?
...n python here which is using cosine similarity.
https://gist.github.com/94a3d425009be0f94751
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What is the most efficient way to deep clone an object in JavaScript?
...ther. For example:
var A1 = {a: "2"};
var A2 = Object.assign({}, A1);
var A3 = {...A1}; // Spread Syntax
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string sanitizer for filename
...ontrol characters http://msdn.microsoft.com/en-us/library/windows/desktop/aa365247%28v=vs.85%29.aspx
[\x7F\xA0\xAD]| # non-printing characters DEL, NO-BREAK SPACE, SOFT HYPHEN
[#\[\]@!$&\'()+,;=]| # URI reserved https://tools.ietf.org/html/rfc3986#section-2.2
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Knight's Shortest Path on Chessboard
...your first move would have to be to the non-existent space to the left of (a3).
– John Hascall
Mar 13 '16 at 10:39
Rig...
How to create the most compact mapping n → isprime(n) up to a limit N?
...n SBen S
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4
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Convert columns to string in Pandas
...aFrame({
...: 'A': [20, 30.0, np.nan],
...: 'B': ["a45a", "a3", "b1"],
...: 'C': [10, 5, np.nan]})
...:
In [79]: df.dtypes ## Current datatype
Out[79]:
A float64
B object
C float64
dtype: object
## Multiple columns string conversion
In [80]: df[["A", "C"]] =...
Is it better to call ToList() or ToArray() in LINQ queries?
...m Schmelter
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answered May 1 '13 at 17:42
JaredParJaredPar
648k133133 g...
Is there an easy way to check the .NET Framework version?
... System.Web, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a", false) != null;
}
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