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Select rows of a matrix that meet a condition
...y will not.
To perform the operation on a matrix, you can define a column by name:
m[m[, "three"] == 11,]
Or by number:
m[m[,3] == 11,]
Note that if only one row matches, the result is an integer vector, not a matrix.
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What does the red exclamation point icon in Eclipse mean?
...h errors
In practice, I've found that a "build path error" may be caused by any number of reasons, depending on what plugins are active. Check the "Problems" view for more information.
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im...
Comparing Haskell's Snap and Yesod web frameworks
...ap, and xmlhtml. snap-server is a web server that exposes the API defined by snap-core. heist is a templating system. xmlhtml is an XML/HTML parsing and rendering library used by heist. snap is an umbrella project that glues them all together and provides the powerful snaplets API that makes web...
Why can't a text column have a default value in MySQL?
...why a text column should not have a default value. No explanation is given by the MySQL documentation. It seems illogical to me (and somewhat frustrating, as I want a default value!). Anybody know why this is not allowed?
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Are there any cases when it's preferable to use a plain old Thread object instead of one of the newe
...fact that a plain old thread's functionality can be replaced in many cases by the ThreadPool class.
10 Answers
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Why do we need the “finally” clause in Python?
...swered Jul 18 '12 at 23:46
Mark ByersMark Byers
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Xcode is not currently available from the Software Update server
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The link provided by Nikos M. is correct. Click here! However you can no longer download these tools without being a registered Apple developer. So either sign in with your Apple Developer ID or click 'Register', agree with Apple's terms, comp...
How do I change the Javadocs template generated in Eclipse?
...le / Code Template
Section Comment / Type
You can replace the author tag by whatever value you need and it will have an effect on new generated classes.
However, if the template is fine, but the value referenced buy the author tag is not, see this SO question:
${user} uses the value of the u...
AngularJS : Where to use promises?
...PI for a moment and just consider the Angular Promises API, as implemented by the $q service. The pattern implemented by this service is an attempt to turn asynchronous programming back into something resembling a linear series of simple statements, with the ability to 'throw' an error at any step ...
moving changed files to another branch for check-in
... error: Your local changes to the following files would be overwritten by checkout:<br/> AspWebApp.vNext/global.asa<br/> RestApi/Web.config<br/> Please, commit your changes or stash them before you can switch branches.<br/> Aborting
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