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Convert columns to string in Pandas
...e looking for the to_json function, which will convert keys to valid json (and therefore your keys to strings):
In [11]: df = pd.DataFrame([['A', 2], ['A', 4], ['B', 6]])
In [12]: df.to_json()
Out[12]: '{"0":{"0":"A","1":"A","2":"B"},"1":{"0":2,"1":4,"2":6}}'
In [13]: df[0].to_json()
Out[13]: '{"...
Given an RGB value, how do I create a tint (or shade)?
... an RGB value, like 168, 0, 255 , how do I create tints (make it lighter) and shades (make it darker) of the color?
3 Answ...
Is there a typical state machine implementation pattern?
We need to implement a simple state machine in C .
Is a standard switch statement the best way to go?
We have a current state (state) and a trigger for the transition.
...
ros 基本调试 - 更多技术 - 清泛网 - 专注C/C++及内核技术
ros 基本调试原文地址：http: www.reactos.org wiki Debugging欢迎拍砖。。本文讲述了调试ROS的各种方法和必要步骤。目录1.简介2.可用的调试方法2.1通...原文地址：http://www.reactos.org/wiki/Debugging
欢迎拍砖。。
本文讲述了调试ROS的各种方...
How can I see all the issues I'm watching on Github?
Github has a great feature where you can "watch" an issue. This is handy for getting notifications about progress on that issue.
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GUI not working after rewriting to MVC
...similar principles. Note that the Model manages a single Piece, chosen at random. In response to a user's selection, the View invokes the check() method, while listening for a response from the Model via update(). The View then updates itself using information obtained from the Model. Similarly, the...
How to check if an object is a certain type
...different object each time. For example, in one case I am using a ListView and in another case I am passing a DropDownList.
...
Catch multiple exceptions at once?
...
Catch System.Exception and switch on the types
catch (Exception ex)
{
if (ex is FormatException || ex is OverflowException)
{
WebId = Guid.Empty;
return;
}
throw;
}
...
Xcode: What is a target and scheme in plain language?
... it :-) What do they mean in plain English language? I really don't understand the explanation on Apple's website and I need to rename my target and I'm afraid that nothing works after that..
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What is a 'Closure'?
I asked a question about Currying and closures were mentioned.
What is a closure? How does it relate to currying?
23 Answer...