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dplyr: “Error in n(): function should not be called directly”
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I presume you have dplyr and plyr loaded in the same session. dplyr is not plyr. ddply is not a function in the dplyr package.
Both dplyr and plyr have the functions summarise/summarize.
Look at the results of conflicts() to see masked objects.
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How to prevent line breaks in list items using CSS
...re space by setting li's width to greater values.
[1] § 3. White Space and Wrapping: the white-space property - W3 CSS Text Module Level 3
[2] white-space - CSS: Cascading Style Sheets | MDN
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How to split strings across multiple lines in CMake?
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Update for CMake 3.0 and newer :
line continuation is possible with \. see cmake-3.0-doc
message("\
This is the first line of a quoted argument. \
In fact it is the only line but since it is long \
the source code uses line continuation.\
")
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How can I change an element's class with JavaScript?
...Explorer prior to v10, though there is a shim to add support for it to IE8 and IE9, available from this page. It is, though, getting more and more supported.
Simple cross-browser solution
The standard JavaScript way to select an element is using document.getElementById("Id"), which is what the fol...
Are Duplicate HTTP Response Headers acceptable?
...ication about whether duplicate HTTP response headers are allowed by the standard, but I need to know if this will cause compatibility issues.
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Git: How to reuse/retain commit messages after 'git reset'?
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When running "git commit" command, you've to check the following options,
To reuse,
--reuse-message=<commit>
To edit on reuse,
--reedit-message=<commit>
To change the author,
--reset-author
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Where is shared_ptr?
...examples I see show complete code to include the headers for shared_ptr (and working). Simply stating std , tr1 and <memory> is not helping at all! I have downloaded boosts and all but still it doesn't show up! Can someone help me by telling exactly where to find it?
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`staticmethod` and `abc.abstractmethod`: Will it blend?
In my Python app I want to make a method that is both a staticmethod and an abc.abstractmethod . How do I do this?
4 Ans...
Loading Backbone and Underscore using RequireJS
I'm trying to load Backbone and Underscore (as well as jQuery) with RequireJS. With the latest versions of Backbone and Underscore, it seems kind of tricky. For one, Underscore automatically registers itself as a module, but Backbone assumes Underscore is available globally. I should also note that ...
Maven dependency for Servlet 3.0 API?
...add the Servlet API as dependency,
To be honest, I'm not sure to understand why but never mind...
Brabster separate dependencies have been replaced by Java EE 6 Profiles. Is there a source that confirms this assumption?
The maven repository from Java.net indeed offers the following artifact...