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Plotting two variables as lines using ggplot2 on the same graph

...bservation per row with each variable as a different column (like you have now). You need to convert it to a "tall" format where you have a column that tells you the name of the variable and another column that tells you the value of the variable. The process of passing from wide to tall is usually ...
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How to find out which fonts are referenced and which are embedded in a PDF document

... pdffonts command line tool originally from Xpdf, now part of Poppler. This tool is available in most Linux distributions as part of poppler-utils package. Example usage and output: $ pdffonts some.pdf name type emb sub uni...
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Git push to wrong branch

...t branch -d wrong_branch git branch rename new_wrong_branch wrong_branch Now the setting is A -- B -- C -- C1 -- C2 -- C3 -- C4 # right_branch \ \ -- D # wrong_branch Then you have to push your results with force (IF nobody has synchronized with your remote repo yet): git ...
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How to see if an NSString starts with a certain other string?

...m going to use as URL starts with http. The way I am trying to check right now doesn't seem to be working. Here is my code: ...
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Is there a simple way to remove multiple spaces in a string?

...nted that behavior, why not just "\s{2,}" instead of a workaround for not knowing moderately-advanced regex behavior? – Chris Lutz Oct 9 '09 at 22:06 2 ...
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adding header to python requests module

Earlier I used httplib module to add a header in the request. Now I am trying the same thing with the requests module. ...
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How to display nodejs raw Buffer data as Hex string

... do u know how to do the reverse? – bubakazouba Dec 21 '15 at 23:17 20 ...
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What is the “reactor” in Maven?

...: My New Favourite Maven Plugin. Most of the reactor plugin features are now natively supported (since Maven 2.1.0). See Maven Tips and Tricks: Advanced Reactor Options. share | improve this answe...
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When to use references vs. pointers

...t is improperly named. add_one(&a) would have the same confusion, only now you might be incrementing the pointer and not the object. add_one_inplace(a) would avoid all confusion. – Nicol Bolas Aug 14 '11 at 22:19 ...
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jQuery selector for inputs with square brackets in the name attribute

... attribute values, you can use quotes: $('input[name="weirdName[23]"]') Now, I'm a little confused by your example; what exactly does your HTML look like? Where does the string "inputName" show up, in particular? edit fixed bogosity; thanks @Dancrumb ...