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How to plot two histograms together in R?

... Here is an even simpler solution using base graphics and alpha-blending (which does not work on all graphics devices): set.seed(42) p1 <- hist(rnorm(500,4)) # centered at 4 p2 <- hist(rnorm(500,6)) # centered at 6 plo...
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What's the best way to iterate over two or more containers simultaneously

...over indices. But not with the classical for loop but instead with a range-based for loop over the indices: for(unsigned i : indices(containerA)) { containerA[i] = containerB[i]; } indices is a simple wrapper function which returns a (lazily evaluated) range for the indices. Since the impleme...
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How can I create tests in Android Studio?

Just downloaded Android Studio which is based off of the Intellij Idea. 12 Answers 12 ...
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Scatter plot and Color mapping in Python

...e(100) plt.scatter(x, y, c=t) plt.show() Here you are setting the color based on the index, t, which is just an array of [1, 2, ..., 100]. Perhaps an easier-to-understand example is the slightly simpler import numpy as np import matplotlib.pyplot as plt x = np.arange(100) y = x t = x plt.scat...
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Android: how to make an activity return results to the activity which calls it?

... // String returnedResult = data.getDataString(); } } } EDIT based on your comment: If you want to return three strings, then follow this by making use of key/value pairs with intent instead of using Uri. Intent data = new Intent(); data.putExtra("streetkey","streetname"); data.putExt...
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What are all the differences between src and data-src attributes?

... Angular.js also uses data-src for late binding of urls based on the model – Jeff Mar 24 '14 at 17:20 ...
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Proper Repository Pattern Design in PHP?

...g to use the repository pattern in an MVC architecture with relational databases. 11 Answers ...
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How to clone a case class instance and change just one field in Scala?

...na1 = messageLens.set(existingPersona)(Set.empty) // or by other operation based on current value. val newPersona2 = messageLens.modify(existingPersona)(_ + "iPad") // Results: // newPersona1: Persona(store,apple,Set()) // newPersona2: Persona(store,apple,Set(iPhone, iPad)) Moreover, in case you ...
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Eclipse Android and gitignore

...lipse specific files, because maybe I want to create a new Android project based on these same sources, but in another OS or IDE. With regards to the error, I would clean the project and/or try to run the Fix Project Properties utility (right-click on the Project -> Android Tools -> Fix Proje...
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Drawing a connecting line between two elements [closed]

...worked perfectly... first of all, Scalable Vector Graphics (SVG) is an XML-based vector image format for two-dimensional graphics with support for interactivity and animation. SVG images and their behaviors are defined in XML text files. you can create an svg in HTML using <svg> tag. Adobe Ill...