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How to form tuple column from two columns in Pandas
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This method list(zip(df.lat, df.long)) in 124ms is much more efficient than df[['lat', 'long']].apply(tuple, axis=1) in 14.2 s for 900k rows. The ratio is more than 100.
– Pengju Zhao
Aug 2 '17 at 4:21
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Java optional parameters
...n varargs or explain the serious disadvantage caused by the possibility of more than one return value.
– Andreas Vogl
Dec 26 '19 at 11:05
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Why does JPA have a @Transient annotation?
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Where are static methods and static variables stored in Java?
...t doesn't mean the garbage collector will collect it (even if there are no more references).
Additionally finalize() is run only once, so you have to make sure it doesn't throw exceptions or otherwise prevent the object to be collected. If you halt finalization through some exception, finalize() wo...
Create batches in linq
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You don't need to write any code. Use MoreLINQ Batch method, which batches the source sequence into sized buckets (MoreLINQ is available as a NuGet package you can install):
int size = 10;
var batches = sequence.Batch(size);
Which is implemented as:
public st...
dispatch_after - GCD in Swift?
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What are good message queue options for nodejs? [closed]
... If you want to go down the non-brokered route this might be worth a look. More work to implement functionality but your more likely to get lower latency and higher throughput.
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Are nested HTML comments possible?
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How do I convert a float number to a whole number in JavaScript?
...unning of your first JSPerf test on Google Chrome, version 30.0.1599.101), more robust (because it doesn't depend on how numbers are represented in bits, which may change and possibly break this bitwise solution), and most importantly, more explicit.
– ma11hew28
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How do I test a private function or a class that has private methods, fields or inner classes?
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