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Peak signal detection in realtime timeseries data
...Filter),
stdFilter = np.asarray(stdFilter))
Below is the test on the same dataset that yields the same plot as in the original answer for R/Matlab
# Data
y = np.array([1,1,1.1,1,0.9,1,1,1.1,1,0.9,1,1.1,1,1,0.9,1,1,1.1,1,1,1,1,1.1,0.9,1,1.1,1,1,0.9,
1,1.1,1,1,1.1,1,0.8,0.9,1...
Java 8 Iterable.forEach() vs foreach loop
...up with facts, I have done some micro-benchmarks with Caliper. Here is the test code (latest Caliper from git is needed):
@VmOptions("-server")
public class Java8IterationBenchmarks {
public static class TestObject {
public int result;
}
public @Param({"100", "10000"}) int ele...
Fundamental difference between Hashing and Encryption algorithms
...ial for an attacker to just run a dictionary through the hash function and test each result.
Adding a salt helps matters since it adds a bit of unknown data to the hash. So instead of finding anything that matches md5(foo), they need to find something that when added to the known salt produces md5...
Omitting all xsi and xsd namespaces when serializing an object in .NET?
... Formatting= System.Xml.Formatting.Indented;}
public override void WriteStartDocument () { }
public override void WriteStartElement(string prefix, string localName, string ns)
{
base.WriteStartElement("", localName, "");
}
}
Suppose this is the type:
// explicitly speci...
What is the correct way of using C++11's range-based for?
...s of a more complex class, with custom copy constructor, etc.
// A sample test class, with custom copy semantics.
class X
{
public:
X()
: m_data(0)
{}
X(int data)
: m_data(data)
{}
~X()
{}
X(const X& other)
: m_data(other.m_data)
{ ...
What C++ Smart Pointer Implementations are available?
...compile-time directive, allowing it to be used to help catch bugs in debug/test/beta modes while incurring no overhead cost in release mode.
Here is an article describing why and how to use them. (Note, shameless plug.)
sha...
Java 256-bit AES Password-Based Encryption
...isk as (output) File.
*
* I left CipherInputStream in here as a test to see if I could mix it with the update() and final() methods of encrypting
* and still have a correctly decrypted file in the end. Seems to work so left it in.
*
* @param input - File object represent...
Move capture in lambda
...amp; x )
{
return rref_impl<T>{ std::move(x) };
}
And here's a test case for that function that ran successfully on my gcc 4.7.3.
int main()
{
std::unique_ptr<int> p{new int(0)};
auto rref = make_rref( std::move(p) );
auto lambda =
[rref]() mutable -> std::...
What does 'super' do in Python?
... class to your object, and want to inject a class between Foo and Bar (for testing or some other reason):
class InjectMe(SomeBaseClass):
def __init__(self):
print('InjectMe.__init__(self) called')
super(InjectMe, self).__init__()
class UnsuperInjector(UnsuperChild, InjectMe): p...
How using try catch for exception handling is best practice
... However, if you're expecting an exception it's usually better practice to test for it first. For instance parse, formatting and arithmetic exceptions are nearly always better handled by logic checks first, rather than a specific try-catch.
If you need to do something on an exception (for instance l...