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Generate random number between two numbers in JavaScript
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edited Jun 12 '19 at 12:06
Luca Fagioli
9,56333 gold badges4343 silver badges4040 bronze badges
answer...
Split (explode) pandas dataframe string entry to separate rows
... for _, row in a.iterrows()]).reset_index()
Out[55]:
index 0
0 a 1
1 b 1
2 c 1
3 d 2
4 e 2
5 f 2
Then you just have to rename the columns
share
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impr...
Clojure 1.2.1/1.3/1.4 'proxy generated in Grails 2.0.0 runtime fails. 1.2.0 is fine
I'm working on extending the Grails Clojure plugin in Grails 2.0.0 (and 2.1.0-SNAPSHOT) and I wanted to update it to Clojure 1.3.0 and add clojure.tools.logging .
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使用CSplitterWnd实现拆分窗口（多视图显示） - C/C++ - 清泛网 - 专注C/C++及内核技术
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返回值:如果创建成功，返回非零值(TRUE)，否则返回0(FALSE)。
m_wndSplitter.CreateStatic(this, 2,1); // 切分为2行1列
virtual BOOL CreateView( int row, int col, CRuntimeClass* pViewClass, SIZE sizeInit, CCreateContext* pContext );
函数有5个...
How to avoid reinstalling packages when building Docker image for Python projects?
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.
├── Dockerfile
├── requirements.txt
└── run.py
0 directories, 3 file
# Dockerfile
FROM dockerfile/python
WORKDIR /srv
ADD ./requirements.txt /srv/requirements.txt
RUN pip install -r requirements.txt
ADD . /srv
CMD python /srv/run.py
# requirements.txt
pytest==2.3.4
# ...
how to convert array values from string to int?
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edited Apr 23 '19 at 10:46
Rahul
16.8k77 gold badges3434 silver badges5353 bronze badges
answered Ma...
How do I replace NA values with zeros in an R dataframe?
...nt in @gsk3 answer. A simple example:
> m <- matrix(sample(c(NA, 1:10), 100, replace = TRUE), 10)
> d <- as.data.frame(m)
V1 V2 V3 V4 V5 V6 V7 V8 V9 V10
1 4 3 NA 3 7 6 6 10 6 5
2 9 8 9 5 10 NA 2 1 7 2
3 1 1 6 3 6 NA 1 4 1 6
4 NA 4 NA 7 10 2 NA 4 1...
Performance of foreach, array_map with lambda and array_map with static function
...W, I just did the benchmark since poster didn't do it. Running on PHP 5.3.10 + XDebug.
UPDATE 2015-01-22 compare with mcfedr's answer below for additional results without XDebug and a more recent PHP version.
function lap($func) {
$t0 = microtime(1);
$numbers = range(0, 1000000);
$ret = $f...
汇编常用寄存器及指令基础总结 - C/C++ - 清泛网 - 专注C/C++及内核技术
汇编常用寄存器及指令基础总结8086汇编常用寄存器数据寄存器AH&AL=AX：累加寄存器，常用于运算BH&BL=BX：基址寄存器，常用于地址索引CH&CL=CX：计数寄存器，常用于计数DH...8086汇编常用寄存器
数据寄存器
AH&AL=AX：累加寄存器，...
What do hjust and vjust do when making a plot using ggplot?
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The value of hjust and vjust are only defined between 0 and 1:
0 means left-justified
1 means right-justified
Source: ggplot2, Hadley Wickham, page 196
(Yes, I know that in most cases you can use it beyond this range, but don't expect it to behave in any specific way. This...