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Large, persistent DataFrame in pandas

... are currently memory problems with read_csv on large files caused by some complex Python internal issues (this is vague but it's been known for a long time: http://github.com/pydata/pandas/issues/407). At the moment there isn't a perfect solution (here's a tedious one: you could transcribe the fi...
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Android 4.1: How to check notifications are disabled for the application?

...n check it, as said in this Google I/O 2016 video. Use NotificationManagerCompat.areNotificationsEnabled(), from support library, to check if notifications are blocked on API 19+. The versions below API 19 will return true (notifications are enabled). ...
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Is it possible to make a Tree View with Angular?

... I was really tired of people constantly commenting on this that the URL has my name in it ( and therefore it is plagiarism! ). That is unfortunately how jsfiddle works. If you fork something while you are logged in it retains your username. Having said that I have ...
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How do you do a deep copy of an object in .NET? [duplicate]

...equire default constructor or any attributes. See my answer: stackoverflow.com/a/11308879/235715 – Alex Burtsev Jul 12 '12 at 4:19 1 ...
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How can I get the max (or min) value in a vector?

... Using c++11/c++0x compile flags, you can auto it = max_element(std::begin(cloud), std::end(cloud)); // c++11 Otherwise, write your own: template <typename T, size_t N> const T* mybegin(const T (&a)[N]) { return a; } template ...
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How does delete[] know it's an array?

... The compiler doesn't know it's an array, it's trusting the programmer. Deleting a pointer to a single int with delete [] would result in undefined behavior. Your second main() example is unsafe, even if it doesn't immediately c...
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Mongod complains that there is no /data/db folder

...eed to use sudo , e.g. sudo mkdir -p /data/db Or you need to do su - to become superuser, and then create the directory with mkdir -p /data/db Note: MongoDB also has an option where you can create the data directory in another location, but that's generally not a good idea, because it just sli...
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How to prevent browser to invoke basic auth popup and handle 401 error using Jquery?

... WWW-Authenticate:xBasic realm=com.example can do it, together with classic 401 status code. this blog post showed me the hint ( I am not the owner of the blog )loudvchar.blogspot.ca/2010/11/… – P.M Dec 13 '12 at 2:...
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What is the yield keyword used for in C#?

...{ using (var connection = CreateConnection()) { using (var command = CreateCommand(CommandType.Text, sql, connection, parms)) { command.CommandTimeout = dataBaseSettings.ReadCommandTimeout; using (var reader = command.ExecuteReader()) { ...
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How do I call some blocking method with a timeout in Java?

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