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pandas DataFrame: replace nan values with average of columns

...DataFrame filled mostly with real numbers, but there is a few nan values in it as well. 10 Answers ...
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Get cookie by name

... One approach, which avoids iterating over an array, would be: function getCookie(name) { const value = `; ${document.cookie}`; const parts = value.split(`; ${name}=`); if (parts.length === 2) return parts.pop().split(';').shift(); } Walkthrough Sp...
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How to generate random number with the specific length in python

Let say I need a 3 digit number, so it would be something like: 8 Answers 8 ...
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How do I import a specific version of a package using go get?

coming from a Node environment I used to install a specific version of a vendor lib into the project folder ( node_modules ) by telling npm to install that version of that lib from the package.json or even directly from the console, like so: ...
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What is the difference between `git merge` and `git merge --no-ff`?

Using gitk log , I could not spot a difference between the two. How can I observe the difference (with a git command or some tool)? ...
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How to report an error from a SQL Server user-defined function

I'm writing a user-defined function in SQL Server 2008. I know that functions cannot raise errors in the usual way - if you try to include the RAISERROR statement SQL returns: ...
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Center image in div horizontally [duplicate]

I have an img in a div ( class="top_image" ) and I want this image to be exactly in the middle of the div but nothing I try works... ...
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How to read a single char from the console in Java (as the user types it)?

Is there an easy way to read a single char from the console as the user is typing it in Java? Is it possible? I've tried with these methods but they all wait for the user to press enter key: ...
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Entity Framework is Too Slow. What are my options? [closed]

...owed the "Don't Optimize Prematurely" mantra and coded up my WCF Service using Entity Framework. 13 Answers ...
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How do I serialize a C# anonymous type to a JSON string?

I'm attempting to use the following code to serialize an anonymous type to JSON: 8 Answers ...