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Delete rows from a pandas DataFrame based on a conditional expression involving len(string) giving K
...question) one way to do this is to use the drop method:
df = df.drop(some labels)
df = df.drop(df[<some boolean condition>].index)
Example
To remove all rows where column 'score' is < 50:
df = df.drop(df[df.score < 50].index)
In place version (as pointed out in comments)
df.drop(d...
What do the &,
...
&default means you're labeling this set of attributes with some name for later use
<<: *default means you're including all attributes from group labeled as default
...
Why does Lua have no “continue” statement?
...ontinue" was properly supported) It's a bit prettier and safer than a goto label though, since for that name clashes might need to be avoided for nested loops.
– E. T.
Aug 21 '14 at 2:28
...
Squash my last X commits together using Git
... @Adam: Basically, this means use the GUI interface of gitk to label the line of code that you are squashing and also label the base upon which to squash to. In the normal case, both of these labels will already exist, so step (1) can be skipped.
– Brent Bradburn
...
How to change variables value while debugging with LLDB in Xcode?
... One more little question: I'm doing this to try to change the text of a UILabel: 'expr myLabel.text = @"hello!" but I get an error: property 'text' not found on object of type 'UILabel *'... Any thoughts?
– Eric
Mar 28 '12 at 13:32
...
jQuery if checkbox is checked
...y>
<input id="check1" type="checkbox" checked="checked">
<label for="check1">Check me</label>
<p></p>
</body>
</html>
share
|
impro...
Setting different color for each series in scatter plot on matplotlib
...nge(0,24)]
Y = [ [randint(0,50) for i in range(0,5)] for i in range(0,24)]
labels = range(1,len(X)+1)
fig = plt.figure()
ax = fig.add_subplot(111)
for x,y,lab in zip(X,Y,labels):
ax.scatter(x,y,label=lab)
The only piece of code that you need:
#Now this is actually the code that you need,...
千亿时代 网游走到十字路口 - 资讯 - 清泛网 - 专注C/C++及内核技术
...到十字路口十余年发展有高峰也有低谷，中国游戏产业还是在去年迈入千亿元时代，而今年的ChinaJoy无疑是多重变局下的集中阅兵：增速放缓到不能再缓的端...十余年发展有高峰也有低谷，中国游戏产业还是在去年迈入千亿元时...
淘宝大秒系统设计详解 - 更多技术 - 清泛网 - 专注C/C++及内核技术
淘宝大秒系统设计详解最初的秒杀系统的原型是淘宝详情上的定时上架功能，由于有些卖家为了吸引眼球，把价格压得很低。但这给的详情系统带来了很大压力，为了将这种突发流量隔离，才设计了秒杀系统，文章主要介绍大秒...
菜单的背景颜色 - C/C++ - 清泛网 - 专注C/C++及内核技术
...里新建一个菜单栏资源，步骤跟新建工具栏资源一样，只是资源类型是：Menu,菜单资源设计如下图：
如果想改菜单项文本内容的话，方法是右击要更改的菜单项，选择属性，接着会弹出这样一个对话框：
上面那个ID项就是该...