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How to convert a factor to integer\numeric without loss of information?
...q max neval
## as.numeric(levels(f))[f] 3.982 5.120 6.088624 5.405 5.974 1981.418 1e+05
## as.numeric(levels(f)[f]) 5.973 7.111 8.352032 7.396 8.250 4256.380 1e+05
## as.numeric(as.character(f)) 6.827 8.249 9.628264 8.534 9.671 1983.694 1e+05
## paste0(x) 7....
Bash set +x without it being printed
...on't work; and with a semicolon but without spaces to the braces, a syntax error will be raised.
– sdaau
Feb 28 '14 at 8:28
...
How to use the CancellationToken property?
...not have to handle the exception yourself (and get the Unhandled Exception error). It will result in leaving the Task, and the Task.IsCancelled property will be True. No exception handling needed.
In your specific case, change the Thread to a Task.
Task t = null;
try
{
t = Task.Run(() => Wo...
How is a CRC32 checksum calculated?
... it is extremely difficult to find a polynomial that detects different bit errors effectively.
You can think of the CRC-32 as a series of "Binary Arithmetic with No Carries", or basically "XOR and shift operations". This is technically called Polynomial Arithmetic.
CRC primer, Chapter 5
To bett...
Handling warning for possible multiple enumeration of IEnumerable
... need to use an IEnumerable<> several times thus get the Resharper error of "Possible multiple enumeration of IEnumerable ".
...
How to import other Python files?
...ky pie people can't go up and have the sky pie!
SKYCAKE!
If you get an error here: ModuleNotFoundError: No module named 'user' then it means you're using python3, startuphooks are disabled there by default.
Credit for this jist goes to: https://github.com/docwhat/homedir-examples/blob/master/py...
Differences between Emacs and Vim
...om vi to emacs for four reasons: (a) one click to get to the next compiler error, (b) gdb integration, (c) grep and find-grep. Is it possible to do these things in vim now?
– zzz777
May 26 '17 at 17:57
...
node.js global variables?
...allyExit: [Function],
chdir: [Function],
debug: [Function],
error: [Function],
cwd: [Function],
watchFile: [Function],
umask: [Function],
getuid: [Function],
unwatchFile: [Function],
mixin: [Function],
setuid: [Function],
setgid: [Function],
...
Python 3.x rounding behavior
...e possible.
– Levon
May 31 '12 at 2:05
1
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MongoDB atomic “findOrCreate”: findOne, insert if nonexistent, but do not update
... ok, thats a good idea, but for the pre-existing value it will return an error but NOT the value itself, right?
– Discipol
May 3 '13 at 14:41
3
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