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How to fix the aspect ratio in ggplot?

I'm trying to resize a plot to fit into my document, but I'm having difficulties getting the plotted diagram do be a square. ...
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Intelligent point label placement in R

... First, here's the results of my solution to this problem: I did this by hand in Preview (very basic PDF/image viewer on OS X) in just a few minutes. (Edit: The workflow was exactly what you'd expect: I saved the plot as a PDF from R, opened it ...
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Android mock location on device?

...le mock locations in the development panel in your settings and add <uses-permission android:name="android.permission.ACCESS_MOCK_LOCATION" /> to your manifest. Now you can go in your code and create your own mock location provider and set the location of this provider. ...
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How to use wait and notify in Java without IllegalMonitorStateException?

I have 2 matrices and I need to multiply them and then print the results of each cell. As soon as one cell is ready I need to print it, but for example I need to print the [0][0] cell before cell [2][0] even if the result of [2][0] is ready first. So I need to print it by order. So my idea is to mak...
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Mutable vs immutable objects

...For example, consider a Person bean with a value-based equals method: Map<Person, String> map = ... Person p = new Person(); map.put(p, "Hey, there!"); p.setName("Daniel"); map.get(p); // => null The Person instance gets "lost" in the map when used as a key because its hashCode an...
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R programming: How do I get Euler's number?

... little number e to play with, you can also make one yourself: emake <- function(){ options("warn"=-1) e <- 0 for (n in 0:2000){ e <- e+ 1/(factorial(n)) } return(e) } e <- emake() e^10 exp(10) # or even: e...
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POSTing a @OneToMany sub-resource association in Spring Data REST

...st step, according to the specification of text/uri-list, you can submit multiple URIs identifying comments separated by a line break to assign multiple comments at once. A few more notes on the general design decisions. A post/comments example is usually a great example for an aggregate, which mea...
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What Ruby IDE do you prefer? [closed]

...nd I'm quite happy with it, but I'm wondering if you guys know any decent alternatives. I know NetBeans also supports Ruby these days, but I'm not sure what it has to offer over Eclipse. ...
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What should I do if two libraries provide a function with the same name generating a conflict?

...inal except the offending one, which is reached through a wrapper with an alternate name. What a hassle. Added later: Since qeek says he's talking about dynamic libraries, the solutions suggested by Ferruccio and mouviciel are probably best. (I seem to live in long ago days when static linkage was t...
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Set element width or height in Standards Mode

Is it possible to set width or height of HTML element (ex. <div> ) in JavaScript in Standards Mode? 2 Answers ...