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How to split data into training/testing sets using sample function
I've just started using R and I'm not sure how to incorporate my dataset with the following sample code:
23 Answers
...
How to run two jQuery animations simultaneously?
...s. It also will
do it outside the queue, meaning it
will automatically start without
waiting for its turn.
$( "p" ).animate({
left: "50px", opacity: 1
}, { duration: 500, queue: false });
simply add: queue: false.
...
Vim: Close All Buffers But This One
... (from [1]) In the ":%bd" command, the '%' range will be replaced with the starting and ending line numbers in the current buffer. Instead of using '%' as the range, you should specify numbers for the range. For example, to delete all the buffers, you can use the command ":1,9999bd" [1] vimdoc.sourc...
How to get current route in Symfony 2?
...will not give you _internal.
Update for Symfony 2.2+: This is not working starting Symfony 2.2+. I opened a bug and the answer was "by design". If you wish to get the route in a sub-action, you must pass it in as an argument
{{ render(controller('YourBundle:Menu:menu', { '_locale': app.request.loc...
What happened to “HelveticaNeue-Italic” on iOS 7.0.3
... fine in Xcode v.5.0, but immediately after upgrading to 5.0.1, this issue started appearing. I've filed a bug with Apple noting as much. Until then, this solution seems to work...
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How to use PyCharm to debug Scrapy projects
...
The scrapy command is a python script which means you can start it from inside PyCharm.
When you examine the scrapy binary (which scrapy) you will notice that this is actually a python script:
#!/usr/bin/python
from scrapy.cmdline import execute
execute()
This means that a comm...
Running junit tests in parallel in a Maven build?
...rallelComputer provided by Junit itself. Here's a small snippet to get you started.
Class[] cls = { TestCase1.class, TestCase2.class };
Result result = JUnitCore.runClasses(ParallelComputer.classes(), cls);
List<Failure> failures = result.getFailures();
This will help when you need to run t...
Difference between fprintf, printf and sprintf?
...xception_fmt::exception_fmt(char const* fmt, ...)
{
va_list ap;
va_start(ap, fmt);
vsnprintf(msg_, sizeof msg_, fmt, ap);
va_end(ap);
}
int main(int ac, char** av)
{
throw exception_fmt("%s: bad number of arguments %d", *av, ac);
}
$ g++ -Wall -o test test.cc
$ ./test
terminat...
How do I merge two javascript objects together in ES6+?
...ript-rest-spread I never realized that because I've been using it from the start with babel and it's enabled by default. But since you need to transpile anyway, and the object spread is a pretty straightforward thing I would recommend it anyway. I love it.
– Thijs Koerselman
...
How to make a python, command-line program autocomplete arbitrary things NOT interpreter
...dline
def completer(text, state):
options = [i for i in commands if i.startswith(text)]
if state < len(options):
return options[state]
else:
return None
readline.parse_and_bind("tab: complete")
readline.set_completer(completer)
The official module docs aren't much ...