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How to crop circular area from bitmap in Android

I have a bitmap and I want to crop a circular region from this bitmap. All pixels outside the circle should be transparent. How can I do this? ...
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Selecting multiple columns in a pandas dataframe

...). df1 = df[['a', 'b']] Alternatively, if it matters to index them numerically and not by their name (say your code should automatically do this without knowing the names of the first two columns) then you can do this instead: df1 = df.iloc[:, 0:2] # Remember that Python does not slice inclusive of...
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Make absolute positioned div expand parent div height

... I'm marking this as it technically is the correct way, though I found another solution to my problem, which is practically to nest the required css on the specific pages which has to differenciate (2 out of 40 at the moment). – user5...
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Accessing a Dictionary.Keys Key through a numeric index

... For some the order is not relevant - just the fact that you went through all the keys. – Royi Mindel Dec 7 '16 at 9:15  |  show 2 more comme...
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AngularJS: Basic example to use authentication in Single Page Application

... I've created a github repo summing up this article basically: https://medium.com/opinionated-angularjs/techniques-for-authentication-in-angularjs-applications-7bbf0346acec ng-login Github repo Plunker I'll try to explain as good as possible, hope I help some of you out there: ...
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How do I get the row count of a pandas DataFrame?

...[0].count()", "len(data.index)"], xlabel="data rows" ) EDIT: As @Dan Allen noted in the comments len(df.index) and df[0].count() are not interchangeable as count excludes NaNs, share | improve...
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Is it possible to push a git stash to a remote repository?

...ffect either! It would only be confusing anyway since that wouldn't fetch all stashes, only the latest one; the list of stashes is the reflog of the ref refs/stashes. share | improve this answer ...
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Intel HAXM installation error - This computer does not support Intel Virtualization Technology (VT-x

I have an issue with my HAXM installation. Here is the thing. I got this error every single time I tried to install HAXM for my computer: ...
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“for loop” with two variables? [duplicate]

... the request for "a function that will read lists "t1" and "t2" and return all elements that are identical", I don't think the OP wants zip or product. I think they want a set: def equal_elements(t1, t2): return list(set(t1).intersection(set(t2))) # You could also do # return list(set(...
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Is it possible to print a variable's type in standard C++?

... update to a very old question: Print variable type in C++. The accepted (and good) answer is to use typeid(a).name(), where a is a variable name. Now in C++11 we have decltype(x), which can turn an expression into a type. And decltype() comes with its own set of very interesting rules. For exam...