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How to count TRUE values in a logical vector
In R, what is the most efficient/idiomatic way to count the number of TRUE values in a logical vector? I can think of two ways:
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How to ignore user's time zone and force Date() use specific time zone
...set() * 60 * 1000));
};
//Sun Jan 01 2017 12:00:00
var timestamp = 1483272000000;
date = parseTimestamp(timestamp);
document.write(date);
Cheers!
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Getting number of elements in an iterator in Python
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– Captain Lepton
Apr 16 '12 at 12:32
9
While this isn't what OP wants, given that his question ...
Html5 data-* with asp.net mvc TextboxFor html attributes
...trov
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What's the role of GetHashCode in the IEqualityComparer in .NET?
...see if the two objects are equivalent.
The GetHashCode method generates a 32-bit integer representation of the object. Since there is no limit to how much information an object can contain, certain hash codes are shared by multiple objects - so the hash code is not necessarily unique.
A dictionar...
How to concatenate text from multiple rows into a single text string in SQL server?
...n go away.
– Jason C
Apr 6 '17 at 0:32
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Jojo SardezJojo Sardez
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What's the equivalent of Java's Thread.sleep() in Objective-C/Cocoa?
...000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 47.1084 7.58816C47.4091 7.46349 47.7169 7.36433 48.0099 7.26993C48.9099 6.97997 49.672 6.73443 49.672 5.93063C49.672 5.22043 48.9832 4.61182 48.1414 4.61182C47.4335 4.61182 46.7256 4.91628 46.0943 5.50789C45.7307 4.9328 4...
How to make a cross-module variable?
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– Software Enthusiastic
Aug 5 '10 at 14:32
31
For one thing, it breaks people's expectations when the...
How to use __doPostBack()
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Mr. Mr.Mr. Mr.
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