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Drop columns whose name contains a specific string from pandas DataFrame
...
import pandas as pd
import numpy as np
array=np.random.random((2,4))
df=pd.DataFrame(array, columns=('Test1', 'toto', 'test2', 'riri'))
print df
Test1 toto test2 riri
0 0.923249 0.572528 0.845464 0.144891
1 0.020438 0.332540 0.144455 0.741412
cols = [c for c...
C# 能否获取一个对象所占内存的大小？ - 更多技术 - 清泛网 - 专注C/C++及内核技术
...来验证值类型，验证代码如下：
int size = sizeof (int); //4个字节
注意点：sizeof 运算符仅适用于值类型，而不适用于引用类型。sizeof 运算符只能在不安全代码块中使用。如下面的代码将无法编译通过：
public struct TestStuct
{...
Python function overloading
...t)
... def add_bullet(sprite, curve, speed):
... print("Called version 4")
...
>>> sprite = Sprite('Turtle')
>>> start = Point(1,2)
>>> direction = Vector(1,1,1)
>>> speed = 100 #km/h
>>> acceleration = 5.0 #m/s
>>> script = lambda sprite: s...
Sublime Text 3能用支持的插件推荐 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...件下载：https://github.com/kemayo/sublime-text-2-clipboard-history
gbk4subl 支持GBK编码
sublime text一个遗憾是不支持中文GBK编码，在编辑一些GBK编码的文件时就会出现乱码，还好sublime text 2有很多可以支持GBK编码的插件，可惜大多在sublime text 3...
What is the purpose of .PHONY in a Makefile?
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2047
By default, Makefile targets are "file targets" - they are used to build files from other files...
How do I get bit-by-bit data from an integer value in C?
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edited Jan 9 '16 at 4:21
Ashish Ahuja
4,70099 gold badges4343 silver badges6161 bronze badges
answ...
Why is this program erroneously rejected by three C++ compilers?
...are
edited Apr 1 '11 at 1:45
community wiki
2 r...
Declaring variables inside a switch statement [duplicate]
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143
You actually can declare variables within a switch if you do it according to the syntax of the ...
How to maximize the browser window in Selenium WebDriver (Selenium 2) using C#?
... can be tracked here: http://code.google.com/p/selenium/issues/detail?id=174
A workaround would be to use the JavascriptExector as follows:
public void resizeTest() {
driver.Navigate().GoToUrl("http://www.example.com/");
((IJavaScriptExecutor)driver).ExecuteScript("window.resizeTo(1024, 768);"...
Why are only a few video games written in Java? [closed]
...
Michael MadsenMichael Madsen
50.4k66 gold badges6666 silver badges8080 bronze badges
...