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How can I use numpy.correlate to do autocorrelation?

... To answer your first question, numpy.correlate(a, v, mode) is performing the convolution of a with the reverse of v and giving the results clipped by the specified mode. The definition of convolution, C(t)=∑ -∞ < i < ∞ aivt+i where -∞ < t &l...
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Add directives from directive in AngularJS

...care of adding more directives to the element it is declared on. For example, I want to build a directive that takes care of adding datepicker , datepicker-language and ng-required="true" . ...
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Using awk to remove the Byte-order mark

How would an awk script (presumably a one-liner) for removing a BOM look like? 5 Answers ...
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How do I save and restore multiple variables in python?

... objects to a file and then restore them later. I've tried to use a for loop with pickle and shelve but it didn't work right. ...
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What is the type of lambda when deduced with “auto” in C++11?

I had a perception that, type of a lambda is a function pointer. When I performed following test, I found it to be wrong ( demo ). ...
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Quicksort vs heapsort

Both quicksort and heapsort do in-place sorting. Which is better? What are the applications and cases in which either is preferred? ...
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What does “#define _GNU_SOURCE” imply?

...RCE has nothing to do with license and everything to do with writing (non-)portable code. If you define _GNU_SOURCE, you will get: access to lots of nonstandard GNU/Linux extension functions access to traditional functions which were omitted from the POSIX standard (often for good reason, such as ...
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What is the reason for performing a double fork when creating a daemon?

I'm trying to create a daemon in python. I've found the following question , which has some good resources in it which I am currently following, but I'm curious as to why a double fork is necessary. I've scratched around google and found plenty of resources declaring that one is necessary, but not ...
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How to get the number of characters in a std::string?

... "hello"; std::cout << str << ":" << str.length(); // Outputs "hello:5" If you're using a c-string, call strlen(). const char *str = "hello"; std::cout << str << ":" << strlen(str); // Outputs "hello:5" Or, if you happen to like using Pascal-style strings (or...
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How do you execute an arbitrary native command from a string?

I can express my need with the following scenario: Write a function that accepts a string to be run as a native command. ...