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Rename specific column(s) in pandas

I've got a dataframe called data . How would I rename the only one column header? For example gdp to log(gdp) ? 5 Answe...
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Add subdomain to localhost URL

I am writing an web application that behaves differently depending on a url prefix. The format is something like: 5 Answers...
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How to initialize array to 0 in C?

I need a big null array in C as a global. Is there any way to do this besides typing out 2 Answers ...
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When should I use Struct vs. OpenStruct?

In general, what are the advantages and disadvantages of using an OpenStruct as compared to a Struct? What type of general use-cases would fit each of these? ...
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What is the best way to programmatically detect porn images? [closed]

Akismet does an amazing job at detecting spam comments. But comments are not the only form of spam these days. What if I wanted something like akismet to automatically detect porn images on a social networking site which allows users to upload their pics, avatars, etc? ...
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Getting the closest string match

I need a way to compare multiple strings to a test string and return the string that closely resembles it: 12 Answers ...
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How to format numbers? [duplicate]

I want to format numbers using JavaScript. 17 Answers 17 ...
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How do I execute a command and get the output of the command within C++ using POSIX?

I am looking for a way to get the output of a command when it is run from within a C++ program. I have looked at using the system() function, but that will just execute a command. Here's an example of what I'm looking for: ...
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How to add a ScrollBar to a Stackpanel

In my WPF application, I have a Stackpanel containing several controls inside them. How can I add a Scrollbar to this stackpanel. ...
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How to change the opacity (alpha, transparency) of an element in a canvas element after it has been

Using the HTML5 <canvas> element, I would like to load an image file (PNG, JPEG, etc.), draw it to the canvas completely transparently, and then fade it in. I have figured out how to load the image and draw it to the canvas, but I don't know how to change its opacity once it as been drawn. ...