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How to avoid warning when introducing NAs by coercion

I generally prefer to code R so that I don't get warnings, but I don't know how to avoid getting a warning when using as.numeric to convert a character vector. ...
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How do I temporarily disable triggers in PostgreSQL?

I'm bulk loading data and can re-calculate all trigger modifications much more cheaply after the fact than on a row-by-row basis. ...
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List files committed for a revision

How do I list the file names/paths that are committed, using a revision number? 3 Answers ...
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int to hex string

I need to convert an int to hex string. 4 Answers 4 ...
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Python Requests - No connection adapters

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How do I resolve cherry-pick conflicts using their changes?

My git cherry-pick FOO produced a conflict. 1 Answer 1 ...
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Multiple Parameters for jQuery selector?

I was just looking at the jQueryUI button plug-in and noticed this 1 Answer 1 ...
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Rails: Get Client IP address

In Rails, what's the best way to get the ip address of the client connecting to the server? 5 Answers ...
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warning: implicit declaration of function

My compiler (GCC) is giving me the warning: 7 Answers 7 ...
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Is it safe to assume strict comparison in a JavaScript switch statement?

I have a variable that can either be boolean false , or an integer (including 0). I want to put it in a switch statement like: ...