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How to make graphics with transparent background in R using ggplot2?
I need to output ggplot2 graphics from R to PNG files with transparent background. Everything is ok with basic R graphics, but no transparency with ggplot2:
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How to get the name of a function in Go?
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How to activate an Anaconda environment
I'm on Windows 8, using Anaconda 1.7.5 64bit.
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In Scala, what exactly does 'val a: A = _' (underscore) mean?
What exactly does val a: A = _ initialize a value to? Is this a typed null? Thanks.
2 Answers
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Compare object instances for equality by their attributes
I have a class MyClass , which contains two member variables foo and bar :
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converting double to integer in java
In Java, I want to convert a double to an integer, I know if you do this:
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Change GitHub Account username
I want to change my account's user name on GitHub, but I can't find how to do it. Is this possible at all? To clarify, I'm not talking about the user.name parameter in a git repository, but the username of the actual GitHub account.
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Symbolic link to a hook in git
I wrote my own custom post-merge hook, now I added a "hooks" directory to my main project folder (since git doesn't track changes in .git/hooks), somewhere I read that I can make a symbolic link from hooks to .git/hooks so I don't have to copy the file from one folder to the other every time someone...
How do I convert seconds to hours, minutes and seconds?
I have a function that returns information in seconds, but I need to store that information in hours:minutes:seconds.
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How to configure postgresql for the first time?
I have just installed postgresql and I specified password x during installation.
When I try to do createdb and specify any password I get the message:
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