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Convert UNIX epoch to Date object
...="1970-01-01"))
[1] "2012-11-05"
R>
Edit: A few years later, we can now use the anytime package:
R> library(anytime)
R> anytime(1352068320)
[1] "2012-11-04 16:32:00 CST"
R> anydate(1352068320)
[1] "2012-11-04"
R>
Note how all this works without any format or origin arguments.
...
Best way to define private methods for a class in Objective-C
...follow (and have seen elsewhere, I think it's an Apple convention as Xcode now gives automatic support for it) is to name such a file after its class and category with a + separating them, so @interface GLObject (PrivateMethods) can be found in GLObject+PrivateMethods.h. The reason for providing the...
Hidden Features of VB.NET?
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The Exception When clause is largely unknown.
Consider this:
Public Sub Login(host as string, user as String, password as string, _
Optional bRetry as Boolean = False)
Try
ssh.Connect(host, user, password)
Catch ex as TimeoutExcepti...
How can you sort an array without mutating the original array?
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Slice is now reported as notably faster
– Zander Brown
May 31 '17 at 13:51
4
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When and why should I use fragments in Android applications? [duplicate]
...of my applications to have their own special behavior and UI, and I don't know how fragments can help. In most cases, I think it is quicker to create 2 different activities (e.g., 1 for tablets and 1 for handsets), and to share the common behaviors and events in a third class.
...
How to create NSIndexPath for TableView
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For Swift 3 it's now: IndexPath(row: rowIndex, section: sectionIndex)
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file_put_contents(meta/services.json): failed to open stream: Permission denied
...specific, but the thought process for Laravel developers is: "make it work NOW, I don't care how", just like 777). As a general rule, never, ever, set anything as 777 to get something to work. UNDERSTAND your server and users/roles and set them accordingly; don't hack at it. Your clients trust you t...
ASP.NET MVC 404 Error Handling [duplicate]
... here
throw new PageNotFoundException("page or resource");
}
Now, in my Action, I am throwing a Custom Exception that I have created. And my Controller is inheriting from a custom Controller Based class that I have created. The Custom Base Controller was created to override error handl...
What does numpy.random.seed(0) do?
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I have used this very often in neural networks. It is well known that when we start training a neural network we randomly initialise the weights. The model is trained on these weights on a particular dataset. After number of epochs you get trained set of weights.
Now suppose you wan...
Resize svg when window is resized in d3.js
...'height', 100)
.attr('width', w);
// now add lots of beautiful elements to your graph
// ...
}
data_display(my_data); // call on page load
window.addEventListener('resize', function(event){
data_display(my_data); // just call it again...
}
The crucial...