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adding noise to a signal in python

I want to add some random noise to some 100 bin signal that I am simulating in Python - to make it more realistic. 7 Answer...
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How to validate an e-mail address in swift?

...ValidEmail(_ email: String) -> Bool { let emailRegEx = "[A-Z0-9a-z._%+-]+@[A-Za-z0-9.-]+\\.[A-Za-z]{2,64}" let emailPred = NSPredicate(format:"SELF MATCHES %@", emailRegEx) return emailPred.evaluate(with: email) } for versions of Swift earlier than 3.0: func isValidEmail(e...
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How to Apply Gradient to background view of iOS Swift App

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Why is XOR the default way to combine hashes?

...om (1-bit) inputs, the AND function output probability distribution is 75% 0 and 25% 1. Conversely, OR is 25% 0 and 75% 1. The XOR function is 50% 0 and 50% 1, therefore it is good for combining uniform probability distributions. This can be seen by writing out truth tables: a | b | a AND b ---+...
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How do I get Month and Date of JavaScript in 2 digit format?

... ("0" + this.getDate()).slice(-2) for the date, and similar: ("0" + (this.getMonth() + 1)).slice(-2) for the month. share | ...
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What is the most efficient string concatenation method in python?

... | edited May 11 '16 at 7:04 Quentin Pradet 4,28622 gold badges2626 silver badges4040 bronze badges answ...
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Fastest way to convert string to integer in PHP

...s -------------------------------------------- (int) "123": 0.55029 intval("123"): 1.0115 (183%) (int) "0": 0.42461 intval("0"): 0.95683 (225%) (int) int: 0.1502 intval(int): 0.65716 (438%) (int) array("a...
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What are differences between AssemblyVersion, AssemblyFileVersion and AssemblyInformationalVersion?

... format: major.minor. This would result in: [assembly: AssemblyVersion("1.0")] If you're following SemVer strictly then this means you only update when the major changes, so 1.0, 2.0, 3.0, etc. AssemblyFileVersion Used for deployment. You can increase this number for every deployment. It is use...
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How to use php serialize() and unserialize()

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Are +0 and -0 the same?

Reading through the ECMAScript 5.1 specification , +0 and -0 are distinguished. 9 Answers ...