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Set default CRAN mirror permanent in R
... your .Rprofile to restore your choice every time you start R
Edit: to be more precise:
Add
options(repos=structure(c(CRAN="YOUR FAVORITE MIRROR")))
to your .Rprofile
Alternatively, you can set the mirror site-wide in your Rprofile.site. The location of the file is given by ?Startup:
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Dynamically set local variable [duplicate]
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How do I move a Git branch out into its own repository?
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TypeScript: Creating an empty typed container array
... found TypeScript type casting, which allowed me to solve the problem in a more concise and readable (and maybe efficient) way:
return <Criminal[]>[];
Hope this will help future readers!
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Build.scala, % and %% symbols meaning
...This is to avoid having to change your build file when you update Scala.
More information here
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EF Code First foreign key without navigation property
...er it only as an ordinary scalar property. Somehow all the above is only a more complicated and slower way compared to just opening a SQL management tool and to add the constraint by hand.
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Why is the String class declared final in Java?
...ted as immutable objects. You should read about immutability to understand more about it.
One advantage of immutable objects is that
You can share duplicates by pointing them to a single instance.
(from here).
If String were not final, you could create a subclass and have two strings that lo...
How to get a string after a specific substring?
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Network usage top/htop on Linux
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nethogs is nice, but it seems to use way more cpu on my computer than iftop
– aidan
Jul 29 '15 at 6:15
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