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Split code over multiple lines in an R script

I want to split a line in an R script over multiple lines (because it is too long). How do I do that? 5 Answers ...
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Why are Where and Select outperforming just Select?

... Select iterates once over the entire set and, for each item, performs a conditional branch (checking for validity) and a + operation. Where+Select creates an iterator that skips invalid elements (doesn't yield them), performing a +...
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How to use the “number_to_currency” helper method in the model rather than view?

... It’s not available because its use in a model (typically) violates MVC (and it does seem to in your case). You're taking data and manipulating it for presentation. This, by definition, belongs in the view, not the model. H...
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Is Safari on iOS 6 caching $.ajax results?

...aching $.ajax calls. This is in the context of a PhoneGap application so it is using the Safari WebView. Our $.ajax calls are POST methods and we have cache set to false {cache:false} , but still this is happening. We tried manually adding a TimeStamp to the headers but it did not help. ...
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What does numpy.random.seed(0) do?

What does np.random.seed do in the below code from a Scikit-Learn tutorial? I'm not very familiar with NumPy's random state generator stuff, so I'd really appreciate a layman's terms explanation of this. ...
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A Java API to generate Java source files [closed]

...es an API called CodeModel for generating Java source files using an API. It's not the easiest thing to get information on, but it's there and it works extremely well. The easiest way to get hold of it is as part of the JAXB 2 RI - the XJC schema-to-java generator uses CodeModel to generate its ja...
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In C++, is it still bad practice to return a vector from a function?

Short version: It's common to return large objects—such as vectors/arrays—in many programming languages. Is this style now acceptable in C++0x if the class has a move constructor, or do C++ programmers consider it weird/ugly/abomination? ...
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Issue with adding common code as git submodule: “already exists in the index”

I'm new to git and would appreciate help with adding submodules. I've received two projects sharing some common code. The shared code was just copied into the two projects. I created a separate git repo for the common code and removed it from the projects with the plan to add it as a git submodule...
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GitHub pages are not updating

I'm running into a weird issue with GitHub pages. I pushed a new commit to my personal pages page maltzj.github.io , but the new article isn't showing up there. When I execute the server locally, a post lives at localhost:4000/posts/the-price-of-inconsistent-code/ . However, when I go to http://m...
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What is the difference between a generative and a discriminative algorithm?

...erstand the difference between a generative and a discriminative algorithm, keeping in mind that I am just a beginner. ...