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Equivalent of “throw” in R

...does one "throw" an error in R? I have a function that takes a data frame and some column names and does stuff with them. If the columns don't exist, I want the function to stop and to stop all functions depending on it. ...
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How can I take more control in ASP.NET?

...ls. It's easier to work with for your purposes. Just use regular HTML tags and put runat="server" and give them an ID. Then you can access them programmatically and code without a ViewState. The only downside is that you won't have access to many of the "helpful" ASP.NET server controls like GridV...
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How/When does Execute Shell mark a build as failure in Jenkins?

...refer). It will email committers when their fixes fixed the failing build. And more and more. Jenkins archiving the artifacts also makes them available, per build, straight off Jenkins. While not as crucial as the SVN checkout, this is once again an integral part of what makes it Jenkins. Same with ...
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How to put multiple statements in one line?

...t is not possible with Python (which makes Python close to useless for command-line one-liner programs). Even explicit use of parentheses does not avoid the syntax exception. You can get away with a sequence of simple statements, separated by semi-colon: for i in range(10): print "foo"; print "bar"...
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What's the best Django search app? [closed]

I'm building a Django project that needs search functionality, and until there's a django.contrib.search , I have to choose a search app. So, which is the best? By "best" I mean... ...
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Save classifier to disk in scikit-learn

How do I save a trained Naive Bayes classifier to disk and use it to predict data? 6 Answers ...
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How to use @Nullable and @Nonnull annotations more effectively?

I can see that @Nullable and @Nonnull annotations could be helpful in preventing NullPointerException s but they do not propagate very far. ...
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Visual Studio: How to “Copy to Output Directory” without copying the folder structure?

.... In the property page of dll, I have selected "Build Action" as "Content" and "Copy to Output Directory" as "Copy always". ...
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Regex to replace multiple spaces with a single space

... string.replace(/\s\s+/g, ' '); If you really want to cover only spaces (and thus not tabs, newlines, etc), do so: string = string.replace(/ +/g, ' '); share | improve this answer | ...
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Folder structure for a Node.js project

... an application (using a testing framework, see here) NOTE: both /vendor and /support are deprecated since NPM introduced a clean package management. It's recommended to handle all 3rd-party dependencies using NPM and a package.json file When building a rather large application, I recommend the f...