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Opposite of %in%: exclude rows with values specified in a vector

A categorical variable V1 in a data frame D1 can have values represented by the letters from A to Z. I want to create a subset D2, which excludes some values, say, B, N and T. Basically, I want a command which is the opposite of %in% ...
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git-svn: how do I create a new svn branch via git?

I have a git repository which tracks an svn repository. I cloned it using --stdlayout . 3 Answers ...
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Why do people say there is modulo bias when using a random number generator?

I have seen this question asked a lot but never seen a true concrete answer to it. So I am going to post one here which will hopefully help people understand why exactly there is "modulo bias" when using a random number generator, like rand() in C++. ...
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How To Set A JS object property name from a variable

I am in need to set a JS object property name dynamically. 8 Answers 8 ...
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Get nth character of a string in Swift programming language

How can I get the nth character of a string? I tried bracket( [] ) accessor with no luck. 45 Answers ...
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Trying to fix line-endings with git filter-branch, but having no luck

.../Linux line-ending issue with git. It seems, via GitHub, MSysGit, and other sources, that the best solution is to have your local repos set to use linux-style line endings, but set core.autocrlf to true . Unfortunately, I didn't do this early enough, so now every time I pull changes the line en...
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Transferring files over SSH [closed]

I'm SSHing into a remote server on the command line, and trying to copy a directory onto my local machine with the scp command. However, the remote server returns this "usage" message: ...
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What is the best Battleship AI?

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How do you remove duplicates from a list whilst preserving order?

Is there a built-in that removes duplicates from list in Python, whilst preserving order? I know that I can use a set to remove duplicates, but that destroys the original order. I also know that I can roll my own like this: ...
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How to convert floats to human-readable fractions?

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