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How to convert a data frame column to numeric type?
... that you should apply transform function in order to complete your task.
Now I'm about to demonstrate certain "conversion anomaly":
# create dummy data.frame
d <- data.frame(char = letters[1:5],
fake_char = as.character(1:5),
fac = factor(1:5),
...
How does __proto__ differ from constructor.prototype?
...sheds full light over the matter
http://i.stack.imgur.com/KFzI3.png
I know I'm not the first one making this up but it was more interesting figuring it out that finding it :-). Anyway, after that I found e.g. this another diagram that I think says basicly the same:
Javascript object layout
The...
How can I benchmark JavaScript code? [closed]
... Sure, no offense mate. I just thought I’d comment for future reference now that more research has been done on the subject.
– Mathias Bynens
Feb 24 '11 at 10:24
4
...
Display numbers with ordinal suffix in PHP
...
Although a bit difficult to understand at first, I do now think it best represents how the ordinal suffix system works for English.
– erisco
Jun 24 '10 at 14:44
...
Why is a C++ Vector called a Vector?
The question's pretty self-explanatory really. I know vaguely about vectors in maths, but I don't really see the link to C++ vectors.
...
What's the purpose of git-mv?
... in parallel. At some point if we want to merge the projects how will git know that it's the same file just renamed it's path? (if "git mv" == "git add + git rm")
– Rose
Dec 27 '12 at 0:22
...
Mockito. Verify method arguments
...s(Object argument) {
return thisObject.equals(argument);
}
}
Now using your code you can update it to read...
Object obj = getObject();
Mockeable mock= Mockito.mock(Mockeable.class);
Mockito.when(mock.mymethod(obj)).thenReturn(null);
Testeable obj = new Testeable();
obj.setMockeable(...
Is it possible to allow didSet to be called during initialization in Swift?
...
Don't know why it works -- but it does. Directly setting the new value within the init()-Method doesn't call didSet() -- but using the given Method setSomeProperty() does.
– Oliver
Aug 10 '14 a...
How does virtual inheritance solve the “diamond” (multiple inheritance) ambiguity?
...ally inherit A. D's object size is increased because it stores 2 pointers now; however there is only one A now.
So B::A and C::A are the same and so there can be no ambiguous calls from D. If you don't use virtual inheritance you have the second diagram above. And any call to a member of A the...
This app won't run unless you update Google Play Services (via Bazaar)
...nt.
(The comment is from Zhelyazko Atanasov yesterday at 23:18, I don't know how to link directly to it)
Also, you don't see the "(via Bazaar)" part when running from an actual device, and the update button open the Play Store. I am assuming Bazaar is meant to provide Google Play Services on the ...