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Convert data.frame column to a vector?

I have a dataframe such as: 11 Answers 11 ...
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Dismissing a Presented View Controller

I have a theoretic question. Now İ'm reading Apple's ViewController guide. 13 Answers ...
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Error to use a section registered as allowDefinition='MachineToApplication' beyond application level

The top line in all of my aspx pages in my /portal/ directory has this error message, and I know it's a common one. I have googled this error message to no end, and I see a lot of posts telling me to configure the /portal/ folder as an application in IIS (which I have), and more posts telling me I ...
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Haskell function composition (.) and function application ($) idioms: correct use

I have been reading Real World Haskell , and I am nearing the end, but a matter of style has been niggling at me to do with the (.) and ($) operators. ...
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Change all files and folders permissions of a directory to 644/755

How would I change all files to 644 and all folders to 755 using chmod from the linux command prompt? (Terminal) 8 Answ...
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How to force a line break in a long word in a DIV?

Okay, this is really confusing me. I have some content inside of a div like so: 16 Answers ...
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When to use @QueryParam vs @PathParam

I am not asking the question that is already asked here: What is the difference between @PathParam and @QueryParam 14 Answ...
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Strings as Primary Keys in SQL Database [closed]

I am not very familiar with databases and the theories behind how they work. Is it any slower from a performance standpoint (inserting/updating/querying) to use Strings for Primary Keys than integers? ...
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How do I represent a time only value in .NET?

Is there a way one can represent a time only value in .NET without the date? For example, indicating the opening time of a shop? ...
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What does |= (ior) do in Python?

Google won't let me search |= so I'm having trouble finding relevant documentation. Anybody know? 8 Answers ...