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Build unsigned APK file with Android Studio

I'm developing an android app with the Android Developer Tool. Now I tried the new Android Studio, everything works fine if connect my smartphone with the pc and directly run the program in the Android Studio. But now I want to test the program with other smartphones without connecting them to my pc...
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Why were pandas merges in python faster than data.table merges in R in 2012?

I recently came across the pandas library for python, which according to this benchmark performs very fast in-memory merges. It's even faster than the data.table package in R (my language of choice for analysis). ...
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What is monkey patching?

I am trying to understand, what is monkey patching or a monkey patch? 8 Answers 8 ...
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Where and why do I have to put the “template” and “typename” keywords?

In templates, where and why do I have to put typename and template on dependent names? What exactly are dependent names anyway? ...
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Is it possible to import a whole directory in sass using @import?

I am modularizing my stylesheets with SASS partials like so: 13 Answers 13 ...
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LEFT OUTER JOIN in LINQ

How to perform left outer join in C# LINQ to objects without using join-on-equals-into clauses? Is there any way to do that with where clause? Correct problem: For inner join is easy and I have a solution like this ...
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Eclipse: have the same file open in two editors?

When I'm editing a large file, I often want to have it open in two editing windows at once (eg. for reference, or because I'm working on two different parts of the file at once). ...
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Is double square brackets [[ ]] preferable over single square brackets [ ] in Bash?

A co-worker claimed recently in a code review that the [[ ]] construct is to be preferred over [ ] in constructs like ...
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Batch Renaming of Files in a Directory

Is there an easy way to rename a group of files already contained in a directory, using Python? 13 Answers ...
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Return empty cell from formula in Excel

...y cell from an Excel formula, but it appears that Excel treats an empty string or a reference to an empty cell differently than a true empty cell. So essentially I need something like ...