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Where does R store packages?
... default, I prefer to have them installed in my home directory. In my .Rprofile, I have this line:
.libPaths( "/Users/tex/lib/R" )
This adds the directory "/Users/tex/lib/R" to the front of the .libPaths variable.
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How do I run a Ruby file in a Rails environment?
I want to run a Ruby file in the context of a Rails environment.
rails runner almost does what I want to do, but I'd like to just give it the file name and arguments. I'm pretty sure this is possible since I've done it before. Can someone remind me how to do this?
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Can I run multiple versions of Google Chrome on the same machine? (Mac or Windows)
...on ONE machine:
Chrome: Stand-alone installers can be downloaded from File Hippo. It is also possible to run multiple Chrome versions
side-by-side.
Although Sandboxie can be used, it's
recommended to use the next native method in order to run multiple
versions side-by-side.
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Saving a Numpy array as an image
...cipy. An alternative a few comments below is to use imageio.imwrite('image_file.jpg', array)
– Psi-Ed
May 3 at 6:17
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pycharm convert tabs to spaces automatically
... Enable Editor Config Support, because I unknowingly had a ~/.editorconfig file overriding PyCharm's settings.
– Warlike Chimpanzee
Jan 21 '18 at 14:03
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serve current directory from command line
...erent platform? Do you know how I can avoid this? But if I write it into a file say myserver.rb then do "ruby myserver.rb", it works fine.
– Tony Jiang
Aug 23 '13 at 0:23
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Is there an easy way to attach source in Eclipse?
...ul way to attach source. You need to do it every time you include the jar file in every project you use the jar. When you have lots of jars, and lots of projects, that's not good.
– James Moore
Jul 24 '12 at 16:05
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How to pass in password to pg_dump?
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Create a .pgpass file in the home directory of the account that pg_dump will run as. See Postgresql documentation libpq-pgpass for details of the format (including the last paragraph where it explains it will be ignored if you don't set the m...
svn: replace trunk with branch
...e the branch to trunk afterward.
Note that copy and move in svn work like file operations. You can use them to move/copy stuff around in your repository and these changes are versioned as well. Think of "move" as "copy+delete".
[EDIT] Nilbus just notified me that you will get merge conflicts when ...
Do I need to manually close an ifstream?
... the C++ way, it's programming in C with classes.
If you want to close the file before the end of a function you can always use a nested scope.
In the standard (27.8.1.5 Class template basic_ifstream), ifstream is to be implemented with a basic_filebuf member holding the actual file handle. It is h...