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Scatterplot with marginal histograms in ggplot2

Is there a way of creating scatterplots with marginal histograms just like in the sample below in ggplot2 ? In Matlab it is the scatterhist() function and there exist equivalents for R as well. However, I haven't seen it for ggplot2. ...
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Where does Xcode 4 store Scheme Data?

I'm just starting to use Xcode 4, and I'm trying to find the file in a project where it stores all of a project's Schemes. I figured they would be stored in a file in the xcodeproj directory somewhere, but for the life of me I can't find which one. ...
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What does int argc, char *argv[] mean?

In many C++ IDE's and compilers, when it generates the main function for you, it looks like this: 8 Answers ...
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How can I get the assembly file version

In AssemblyInfo there are two assembly versions: 5 Answers 5 ...
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How to cast/convert pointer to reference in C++

How can I pass a pointer ( Object *ob ) to a function which prototype is void foo(Object &) ? 2 Answers ...
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How to update maven repository in Eclipse?

Assuming you're already using the m2eclipse plugin , what can you do when it doesn't update the dependencies to the latest in your repo? ...
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How to import existing *.sql files in PostgreSQL 8.4?

I am using PostgreSQL 8.4, and I have some *.sql files to import into a database. How can I do so? 5 Answers ...
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Can TCP and UDP sockets use the same port?

First of all, is there any problem with using both UDP and TCP on the same server? 2 Answers ...
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pretty-print JSON using JavaScript

How can I display JSON in an easy-to-read (for human readers) format? I'm looking primarily for indentation and whitespace, with perhaps even colors / font-styles / etc. ...
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How to get process ID of background process?

I start a background process from my shell script, and I would like to kill this process when my script finishes. 7 Answers...