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How does IPython's magic %paste work?
...t is %cpaste
– yekta
Dec 28 '12 at 15:03
61
You actually can copy code to IPython directly: you m...
Right way to reverse pandas.DataFrame?
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255
data.reindex(index=data.index[::-1])
or simply:
data.iloc[::-1]
will reverse your data fra...
WinDBG用法详解 PDF - 文档下载 - 清泛网 - 专注C/C++及内核技术
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30.1.5删除............................................................................................................................3
30.1.6主题.................................................................................
C语言面试那些事儿──一道指针与数组问题 - c++1y / stl - 清泛IT社区，为创新赋能！
...看如下代码：
int main(int argc, char** argv)
{
int a[5] = {1,2,3,4,5};
int* ptr = (int*)(&a + 1);
printf("%d,%d\n", *(a+1), *(ptr-1));
return 0;
}复制代码这道题在很多所谓经典C语言面试题里是常见的不...
How to append multiple values to a list in Python
...> lst.append(4)
>>> lst
[1, 2, 3, 4]
>>> lst.extend([5, 6, 7])
>>> lst.extend((8, 9, 10))
>>> lst
[1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
>>> lst.extend(range(11, 14))
>>> lst
[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13]
So you can use list.append(...
Rails migration: t.references with alternative name?
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5 Answers
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Visual Studio replace tab with 4 spaces?
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5 Answers
5
Active
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ggplot2 keep unused levels barplot
...)
df <- data.frame(type=c("A", "A", "A", "B", "B"), group=rep("group1", 5))
df1 <- data.frame(type=c("A", "A", "A", "B", "B", "A", "A", "C", "B", "B"), group=c(rep("group1", 5),rep("group2", 5)))
df$type <- factor(df$type, levels=c("A","B", "C"))
df1$type <- factor(df1$type, levels=c("A"...