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numpy: most efficient frequency counts for unique values in an array
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Index all *except* one item in python
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115
For a list, you could use a list comp. For example, to make b a copy of a without the 3rd ele...
How to initialize an array in one step using Ruby?
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You can use an array literal:
array = [ '1', '2', '3' ]
You can also use a range:
array = ...
How can I determine the direction of a jQuery scroll event?
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edited Mar 21 '13 at 17:50
user372743
answered Dec 1 '10 at 17:04
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Awk学习笔记 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...能，是linux unix下的一个强大编程工具。
目录：
1. awk简介
2. awk命令格式和选项
2.1. awk的语法有两种形式
2.2. 命令选项
3. 模式和操作
3.1. 模式
3.2. 操作
4. aw...
Memcached下一站：HandlerSocket！ - 更多技术 - 清泛网 - 专注C/C++及内核技术
...相应的安装过程再写一遍。
首先要确保已经安装了MySQL5.1以上的版本，我用的是Ubuntu操作系统，事先已经用apt安装了MySQL5.1.37，同时还需要相应的mysql_config，如果是Ubuntu的话，可以：
shell> aptitude install libmysqld-dev
注：如果你...
All combinations of a list of lists
... need itertools.product:
>>> import itertools
>>> a = [[1,2,3],[4,5,6],[7,8,9,10]]
>>> list(itertools.product(*a))
[(1, 4, 7), (1, 4, 8), (1, 4, 9), (1, 4, 10), (1, 5, 7), (1, 5, 8), (1, 5, 9), (1, 5, 10), (1, 6, 7), (1, 6, 8), (1, 6, 9), (1, 6, 10), (2, 4, 7), (2, 4, 8),...
What is Bit Masking?
...s an example of extracting a subset of the bits in the value:
Mask: 00001111b
Value: 01010101b
Applying the mask to the value means that we want to clear the first (higher) 4 bits, and keep the last (lower) 4 bits. Thus we have extracted the lower 4 bits. The result is:
Mask: 00001111b
Valu...
Is there a list of screen resolutions for all Android based phones and tablets? [closed]
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(out of date) Spreadsheet of device metrics.
SEE ALSO:
Device Metrics - Material Design.
Scre...