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What is the meaning of the term arena in relation to memory?

... 113 An arena is just a large, contiguous piece of memory that you allocate once and then use to ma...
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Calculating Pearson correlation and significance in Python

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Speed up the loop operation in R

...on). The data.frame has roughly 850K rows. My PC is still working (about 10h now) and I have no idea about the runtime. 1...
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What is the difference between min SDK version/target SDK version vs. compile SDK version?

... sort of optimal run conditions. If you were to "make your app for version 19", this is where that would be specified. It may run on earlier or later releases, but this is what you were aiming for. This is mostly to indicate how current your application is for use in the marketplace, etc. The compi...
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Git Tag list, display commit sha1 hashes

... 146 To get git tags with the SHA1 hash of the Tag object, you can run: git show-ref --tags The ...
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Should I use Java date and time classes or go with a 3rd party library like Joda Time?

... 197 EDIT: Now that Java 8 has been released, if you can use that, do so! java.time is even cleaner...
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Python unit test with base and sub class

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mysql_config not found when installing mysqldb python interface

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How do I break a string across more than one line of code in JavaScript?

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Optimise PostgreSQL for fast testing

...ion of slightly altering the DDL, you can also use UNLOGGED tables in Pg 9.1+ to completely avoid WAL logging and gain a real speed boost at the cost of the tables getting erased if the server crashes. There is no configuration option to make all tables unlogged, it must be set during CREATE TABLE. ...