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List distinct values in a vector in R

How can I list the distinct values in a vector where the values are replicative? I mean, similarly to the following SQL statement: ...
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Weird “[]” after Java method signature

I looked at some Java code today, and I found some weird syntax: 4 Answers 4 ...
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How does Python 2 compare string and int? Why do lists compare as greater than numbers, and tuples g

The following snippet is annotated with the output ( as seen on ideone.com ): 2 Answers ...
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Using pg_dump to only get insert statements from one table within database

I'm looking for a way to get all rows as INSERT statements from one specific table within a database using pg_dump in PostgreSQL. ...
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Ternary Operator Similar To ?:

I am trying to avoid constructs like this: 5 Answers 5 ...
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Capitalize or change case of an NSString in Objective-C

I was wondering how to capitalize a string found in an object in an NSMutableArray . 3 Answers ...
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cannot load such file — zlib even after using rvm pkg install zlib

I installed zlib package and ruby 1.9.3 using rvm, but whenever I try to install gems it says cannot load such file -- zlib ...
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When to use leading slash in gitignore

I'm trying to understand more clearly the .gitignore syntax, and in particular as far as https://github.com/github/gitignore gitignores are concerned. ...
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Ruby get object keys as array

I am new to Ruby, if I have an object like this 4 Answers 4 ...
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PHP variables in anonymous functions

I was playing around with anonymous functions in PHP and realized that they don't seem to reach variables outside of them. Is there any way to get around this problem? ...