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Remove columns from dataframe where ALL values are NA
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12 Answers
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How to set a Timer in Java?
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281
So the first part of the answer is how to do what the subject asks as this was how I initially i...
How do I find the location of the executable in C? [duplicate]
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199
To summarize:
On Unixes with /proc really straight and realiable way is to:
readlink("/pro...
How to get names of enum entries?
...: ", enumMember);
}
Will print the following:
Enum member: 0
Enum member: 1
Enum member: bar
Enum member: foo
If you instead want only the member names, and not the values, you could do something like this:
for (var enumMember in myEnum) {
var isValueProperty = parseInt(enumMember, 10) >= 0
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What is the advantage of using forwarding references in range-based for loops?
...ider:
#include <vector>
int main()
{
std::vector<bool> v(10);
for (auto& e : v)
e = true;
}
This doesn't compile because rvalue vector<bool>::reference returned from the iterator won't bind to a non-const lvalue reference. But this will work:
#include <...
Resize UIImage by keeping Aspect ratio and width
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19 Answers
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How can I change the color of a Google Maps marker?
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edited Dec 5 '13 at 22:22
mooreds
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Why is “if not someobj:” better than “if someobj == None:” in Python?
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190
In the first test, Python try to convert the object to a bool value if it is not already one. ...
JavaScript: Check if mouse button down?
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16 Answers
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What exception classes are in the standard C++ library
... library, and what should they be used for? I know there are a few new C++11 exceptions, but I'm not sure what they are or where they are.
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