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How to split data into training/testing sets using sample function
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There are numerous approaches to achieve data partitioning. For a more complete approach take a look at the createDataPartition function in the caTools package.
Here is a simple example:
data(mtcars)
## 75% of the sample size
smp_size...
Why would json_encode return an empty string
... encoding problem
mb_detect_encoding returns probably a faulty response, some strings were probably not UTF-8
using utf8_encode() on those string solved my problem, but see note below
Here is a recursive function that can force convert to UTF-8 all the strings contained in an array:
function utf...
Java 8 Iterable.forEach() vs foreach loop
...om throwing checked exceptions, but common functional interfaces like Consumer don't declare any. Therefore, any code that throws checked exceptions must wrap them in try-catch or Throwables.propagate(). But even if you do that, it's not always clear what happens to the thrown exception. It could ge...
Is there a way to detect if a browser window is not currently active?
...Since originally writing this answer, a new specification has reached recommendation status thanks to the W3C. The Page Visibility API (on MDN) now allows us to more accurately detect when a page is hidden to the user.
document.addEventListener("visibilitychange", onchange);
Current browser sup...
How can I use swift in Terminal?
I read What's new in Xcode 6 . The article introduces some new feature about Xcode 6, and it says:
13 Answers
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Wrap text in tag
I want to wrap some text that is added to a <td> element.
I have tried with style="word-wrap: break-word;" width="15%" .
But it is not wrapping the text. Is it mandatory to give it 100% width?
I have other controls to display so only 15% width is available.
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Finding the Eclipse Version Number
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(Update September 2012):
MRT points out in the comments that "Eclipse Version" question references a .eclipseproduct in the main folder, and it contains:
name=Eclipse Platform
id=org.eclipse.platform
version=3.x.0
So that seems more straightforward than my original answer...
Are there any HTTP/HTTPS interception tools like Fiddler for mac OS X? [closed]
...e are any applications like fiddler but for mac OS X, as I need to debug some requests from web applications in Mac OS X. I used to do it with fiddler on Windows and would love to have this tool available on Mac as well.
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Detect element content changes with jQuery
change() function works and detects changes on form elements, but is there a way of detecting when a DOM element's content was changed?
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In a URL, should spaces be encoded using %20 or +? [duplicate]
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