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Matplotlib discrete colorbar

I am trying to make a discrete colorbar for a scatterplot in matplotlib 7 Answers 7 ...
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How to add new item to hash

I'm new to Ruby and don't know how to add new item to already existing hash. For example, first I construct hash: 7 Answers...
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Rails mapping array of hashes onto single hash

... You could compose Enumerable#reduce and Hash#merge to accomplish what you want. input = [{"testPARAM1"=>"testVAL1"}, {"testPARAM2"=>"testVAL2"}] input.reduce({}, :merge) is {"testPARAM2"=>"testVAL2", "testPARAM1"=>"testVAL1"} Reducin...
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How can I add a third button to an Android Alert Dialog?

The API says that the Alert Dialog can have one, two or three buttons, but the SDK only allows for a positive and negative button. How then can I add a third button? ...
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Function to calculate distance between two coordinates

I'm currently using the function below and it doesn't work properly. According to Google Maps, the distance between these coordinates (from 59.3293371,13.4877472 to 59.3225525,13.4619422 ) are 2.2 kilometres while the function returns 1.6 kilometres. How can I make this function return the ...
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Is it possible to declare two variables of different types in a for loop?

Is it possible to declare two variables of different types in the initialization body of a for loop in C++? 8 Answers ...
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Mercurial: Can I rename a branch?

We now have a "stiging" branch, where "staging" seems to be a far better semantic fit. What's a good strategy for handling this? ...
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Why aren't programs written in Assembly more often? [closed]

It seems to be a mainstream opinion that assembly programming takes longer and is more difficult to program in than a higher level language such as C. Therefore it seems to be recommend or assumed that it is better to write in a higher level language for these reasons and for the reason of better po...
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Passing a list of kwargs?

Can I pass a list of kwargs to a method for brevity? This is what i'm attempting to do: 4 Answers ...
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Pair/tuple data type in Go

... is no tuple type in Go, and you are correct, the multiple values returned by functions do not represent a first-class object. Nick's answer shows how you can do something similar that handles arbitrary types using interface{}. (I might have used an array rather than a struct to make it indexable l...