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Convert the values in a column into row names in an existing data frame

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Count elements with jQuery

... var count_elements = $('.class').length; From: http://api.jquery.com/size/ The .size() method is functionally equivalent to the .length property; however, the .length property is preferred because it does not have the overhead of a function call. Pleas...
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SQLAlchemy versioning cares about class import order

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ruby operator “=~” [duplicate]

...expression against a string, and it returns either the offset of the match from the string if it is found, otherwise nil. /mi/ =~ "hi mike" # => 3 "hi mike" =~ /mi/ # => 3 "mike" =~ /ruby/ # => nil You can place the string/regex on either side of the operator as you can see above. ...
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BeautifulSoup getting href [duplicate]

...y to find every a element that has an href attribute, and print each one: from BeautifulSoup import BeautifulSoup html = '''<a href="some_url">next</a> <span class="class"><a href="another_url">later</a></span>''' soup = BeautifulSoup(html) for a in soup.find_...
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JUnit assertEquals(double expected, double actual, double epsilon) [duplicate]

...se they have to be. If you were expecting 3.14159 but would take anywhere from 3.14059 to 3.14259 (that is, within 0.001), then you should write something like double myPi = 22.0d / 7.0d; //Don't use this in real life! assertEquals(3.14159, myPi, 0.001); (By the way, 22/7 comes out to 3.1428+, a...
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Adding attribute in jQuery

... best solution: from jQuery v1.6 you can use prop() to add a property $('#someid').prop('disabled', true); to remove it, use removeProp() $('#someid').removeProp('disabled'); Reference Also note that the .removeProp() method sh...
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opposite of .gitignore file? [duplicate]

...ed, in subdirectories, you will need to prevent the containing directories from getting ignored too. This should not pose a large problem, since git doesn't actually track directories, only files (identified by a repository path). Example: * !*/ !SOURCES will ignore everything, except SOURCES in...
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Array copy values to keys in PHP [duplicate]

... The above is incorrect - your quote comes from the documentation for array_merge and not array_combine; I even tested it with array_combine and the latter value, even in numeric key arrays always overwrites the former one. – Brett ...
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How can I stop float left?

... Okay I just realized the answer is to remove the first float left from the first DIV. Don't know why I didn't see that before. share | improve this answer | follow ...