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Which concurrent Queue implementation should I use in Java?
... behavior.
Taking the easiest first, ArrayBlockingQueue is a queue of a fixed size. So if you set the size at 10, and attempt to insert an 11th element, the insert statement will block until another thread removes an element. The fairness issue is what happens if multiple threads try to insert and ...
How to create a density plot in matplotlib?
....5]*2 + [3.5]*8 + [4.5]*3 + [5.5]*1 + [6.5]*8
density = gaussian_kde(data)
xs = np.linspace(0,8,200)
density.covariance_factor = lambda : .25
density._compute_covariance()
plt.plot(xs,density(xs))
plt.show()
I get
which is pretty close to what you are getting from R. What have I done? gaussian_...
What is the difference between Pan and Swipe in iOS?
...pe is a pan but a pan may not be a swipe, so the pan recognizes first and excludes other recognizers.
You should be able to resolve this conflict using the delegate method gestureRecognizer:shouldRecognizeSimultaneouslyWithGestureRecognizer:, or perhaps without delegation by making the pan recogniz...
Adding up BigDecimals using Streams
I have a collection of BigDecimals (in this example, a LinkedList ) that I would like to add together. Is it possible to use streams for this?
...
Dashed line border around UIView
...n set the border with this pattern using Layer and Bezier path like below examples.
Objective-C
CAShapeLayer *yourViewBorder = [CAShapeLayer layer];
yourViewBorder.strokeColor = [UIColor blackColor].CGColor;
yourViewBorder.fillColor = nil;
yourViewBorder.lineDashPattern = @[@2, @2];
yourViewBorder...
What are the dangers when creating a thread with a stack size of 50x the default?
... working on a very performance critical program and one path I decided to explore that may help reduce resource consumption was increasing my worker threads' stack size so I can move most of the data ( float[] s) that I'll be accesing onto the stack (using stackalloc ).
...
Get the distance between two geo points
...
An approximated solution (based on an equirectangular projection), much faster (it requires only 1 trig and 1 square root).
This approximation is relevant if your points are not too far apart. It will always over-estimate compared t...
Self-references in object literals / initializers
... + this.b;
}
}
console.log(foo.c) // 11
This is a syntactic extension introduced by the ECMAScript 5th Edition Specification, the syntax is supported by most modern browsers (including IE9).
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ES6 class variable alternatives
... months.
In the meantime anyone using TypeScript or babel can use the syntax:
varName = value
Inside a class declaration/expression body and it will define a variable. Hopefully in a few months/weeks I'll be able to post an update.
Update: Chrome 74 now ships with this syntax working.
The notes in...
How do I create 7-Zip archives with .NET?
...reate 7-Zip archives from my C# console application? I need to be able to extract the archives using the regular, widely available 7-Zip program.
...