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How do I install an R package from source?
...he downloaded packages are in ‘/private/var/folders/Ey/EyzhYjoKESmsmsZ6K87PeU+++TI/-Tmp-/Rtmpe3C96p/downloaded_packages’ Updating HTML index of packages in '.Library' Warning message: In install.packages("RJSONIO", repos = "omegahat.org/R", : installation of package 'RJSONIO' had non-zero ex...
How to run a program without an operating system?
...tall it to a disk.
Here we create one with a single printf call:
printf '\364%509s\125\252' > main.img
sudo apt-get install qemu-system-x86
qemu-system-x86_64 -hda main.img
Outcome:
Note that even without doing anything, a few characters are already printed on the screen. Those are printed by t...
Algorithm to return all combinations of k elements from n
...s code.
– hgus1294
Jul 17 '12 at 10:46
61
@hgus1294 True, but that would be cheating. Op requeste...
Long vs Integer, long vs int, what to use and when?
...Object form of long, and Integer is the object form of int.
The long uses 64 bits. The int uses 32 bits, and so can only hold numbers up to ±2 billion (-231 to +231-1).
You should use long and int, except where you need to make use of methods inherited from Object, such as hashcode. Java.util.col...
What is the easiest way to ignore a JPA field during persistence?
...
cletuscletus
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22
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How to delete an SMS from the inbox in Android programmatically?
...
87
"As of Android 1.6, incoming SMS message broadcasts (android.provider.Telephony.SMS_RECEIVED) a...
Can you change what a symlink points to after it is created?
...
answered Jul 2 '12 at 16:46
TaaiTaai
2,22011 gold badge1111 silver badges1313 bronze badges
...
How to validate an e-mail address in swift?
...
let emailRegEx = "[A-Z0-9a-z._%+-]+@[A-Za-z0-9.-]+\\.[A-Za-z]{2,64}"
let emailPred = NSPredicate(format:"SELF MATCHES %@", emailRegEx)
return emailPred.evaluate(with: email)
}
for versions of Swift earlier than 3.0:
func isValidEmail(email: String) -> Bool {
let emailRe...
Where can I find WcfTestClient.exe (part of Visual Studio)
...Should it be of any help to future readers, after installing VS2012 on an x64 machine this program was located here: C:\Program Files (x86)\Microsoft Visual Studio 11.0\Common7\IDE\WcfTestClient.exe
– JohnLBevan
Nov 4 '12 at 23:38
...
How to print register values in GDB?
...\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 47.1084 7.58816C47.4091 7.46349 47.7169 7.36433 48.0099 7.26993C48.9099 6.97997 49.672 6.73443 49.672 5.93063C49.672 5.22043 48.9832 4.61182 48.1414 4.61182C47.4335 4.61182 46.7...