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Pandas - How to flatten a hierarchical index in columns

I have a data frame with a hierarchical index in axis 1 (columns) (from a groupby.agg operation): 17 Answers ...
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How to add ASP.NET 4.0 as Application Pool on IIS 7, Windows 7

Configuring servers is not my strong suit by any means. I'm trying to move a development project to Windows 7. One of the things that I need to run the application is to select ASP.NET v4.0 as the application pool within IIS. ...
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Android - Spacing between CheckBox and text

Is there an easy way to add padding between the checkbox in a CheckBox control, and the associated text? 29 Answers ...
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How do I concatenate or merge arrays in Swift?

If there are two arrays created in swift like this: 12 Answers 12 ...
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Razor View throwing “The name 'model' does not exist in the current context”

After significant refactoring in my MVC 4 application, and Razor shows this error while debugging Views: 22 Answers ...
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How to test valid UUID/GUID?

How to check if variable contains valid UUID/GUID identifier? 12 Answers 12 ...
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Only read selected columns

...rst 6 months (7 columns) for each year of the data below, for example by using read.table() ? 4 Answers ...
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String is immutable. What exactly is the meaning? [duplicate]

I wrote the following code on immutable Strings. 19 Answers 19 ...
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Calculate the median of a billion numbers

... Ah, my brain has just kicked into gear, I have a sensible suggestion now. Probably too late if this had been an interview, but never mind: Machine 1 shall be called the "control machine", and for the sake of argument either it starts ...
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Max or Default?

What is the best way to get the Max value from a LINQ query that may return no rows? If I just do 17 Answers ...