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Is it possible to specify your own distance function using scikit-learn K-Means Clustering?
...kmeans a random sample of nsample ~ sqrt(N) from X
2) full kmeans, starting from those centres
"""
# merge w kmeans ? mttiw
# v large N: sample N^1/2, N^1/2 of that
# seed like sklearn ?
N, dim = X.shape
if nsample == 0:
nsample = max( 2*np.sqrt(N)...
git pull while not in a git directory
...
Starting git 1.8.5 (Q4 2013), you will be able to "use a Git command, but without having to change directories".
Just like "make -C <directory>", "git -C <directory> ..." tells Git to go there before doing any...
Forward an invocation of a variadic function in C
...
/* Initialise the va_list variable with the ... after fmt */
va_start(myargs, fmt);
/* Forward the '...' to vprintf */
ret = vprintf(fmt, myargs);
/* Clean up the va_list */
va_end(myargs);
return ret;
}
This should give you the effect that you are looking for.
I...
Taking screenshot on Emulator from Android Studio
...
Starting with Android Studio 2.0 you can do it with the new emulator:
Just click 3 "Take Screenshot". Standard location is the desktop.
Or
Select "More"
Under "Settings", specify the location for your screenshot
Take your s...
Sending data back to the Main Activity in Android
... from a list or entering data in a dialog box. In this case you should use startActivityForResult to launch your child Activity.
This provides a pipeline for sending data back to the main Activity using setResult. The setResult method takes an int result value and an Intent that is passed back to t...
Check if a string contains another string
...Compare)
will give you a value of 14.
Note that you have to specify the start position in this case as stated in the specification I linked: The start argument is required if compare is specified.
share
|
...
Java8 Lambdas vs Anonymous classes
...t.println("in run");
}
};
Thread t = new Thread(r);
t.start();
}
//syntax of lambda expression
public static void main(String[] args) {
Runnable r = ()->{System.out.println("in run");};
Thread t = new Thread(r);
t.start();
}
2)Scope
An anonymous inner class ...
Enum String Name from Value
...um.
[Code for Performance Benchmark]
Stopwatch sw = new Stopwatch (); sw.Start (); sw.Stop (); sw.Reset ();
double sum = 0;
int n = 1000;
Console.WriteLine ("\nGetName method way:");
for (int i = 0; i < n; i++) {
sw.Start ();
string t = Enum.GetName (typeof (Roles), roleValue);
sw.Stop...
How to close activity and go back to previous activity in android
I have a main activity, that when I click on a button, starts a new activity, i used the following code to do so:
18 Answer...
Django - iterate number in for loop of a template
...
Django provides it. You can use either:
{{ forloop.counter }} index starts at 1.
{{ forloop.counter0 }} index starts at 0.
In template, you can do:
{% for item in item_list %}
{{ forloop.counter }} # starting index 1
{{ forloop.counter0 }} # starting index 0
# do your stuff
{%...