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How to unload a package without restarting R
...nt version and a stable version in different libraries). To guarantee that all copies are detached, use this function.
detach_package <- function(pkg, character.only = FALSE)
{
if(!character.only)
{
pkg <- deparse(substitute(pkg))
}
search_item <- paste("package", pkg, sep = ":...
Prevent scrolling of parent element when inner element scroll position reaches top/bottom? [duplicat
...nkey I'm aware of this issue. I hope to have time to revise the answer for all browsers and device.
– amustill
Jan 23 '13 at 10:34
2
...
How Does Modulus Divison Work
I don't really understand how modulus division works.
I was calculating 27 % 16 and wound up with 11 and I don't understand why.
...
Proper stack and heap usage in C++?
...n programming for a while but It's been mostly Java and C#. I've never actually had to manage memory on my own. I recently began programming in C++ and I'm a little confused as to when I should store things on the stack and when to store them on the heap.
...
How can I declare optional function parameters in Javascript? [duplicate]
...b || 0;
// b will be set either to b or to 0.
}
This works as long as all values you explicitly pass in are truthy.
Values that are not truthy as per MiniGod's comment: null, undefined, 0, false, ''
It's pretty common to see JavaScript libraries to do a bunch of checks on optional inputs befor...
Django - “no module named django.core.management”
...
It sounds like you do not have django installed. You should check the directory produced by this command:
python -c "from distutils.sysconfig import get_python_lib; print get_python_lib()"
To see if you have the django packages in there.
If there's no django fo...
hadoop No FileSystem for scheme: file
...tem, hadoop-hdfs for DistributedFileSystem) each contain a different file called org.apache.hadoop.fs.FileSystem in their META-INFO/services directory. This file lists the canonical classnames of the filesystem implementations they want to declare (This is called a Service Provider Interface impleme...
How to merge remote changes at GitHub?
...eject was on a branch that I didn't have checked out. The branch I was actually on was succeeding. The solution was to git checkout other-branch; git pull; git push; git checkout branch-i-was-working-on.
– Noah Spurrier
Sep 18 '12 at 19:44
...
Apache Spark: The number of cores vs. the number of executors
...
To hopefully make all of this a little more concrete, here’s a worked example of configuring a Spark app to use as much of the cluster as
possible: Imagine a cluster with six nodes running NodeManagers, each
equipped with 16 cores and 64GB o...
PHP Remove elements from associative array
...',
4 => 'Completed',
5 => 'Mark As Spam',
);
That would allow you to use your values of key as indexes to access the array...
And you'd be able to use functions to search on the values, such as array_search() :
$indexCompleted = array_search('Completed', $array);
unset($array[$...