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Cluster analysis in R: determine the optimal number of clusters
...t;- Mclust(as.matrix(d), G=1:20)
m.best <- dim(d_clust$z)[2]
cat("model-based optimal number of clusters:", m.best, "\n")
# 4 clusters
plot(d_clust)
Five. Affinity propagation (AP) clustering, see http://dx.doi.org/10.1126/science.1136800
library(apcluster)
d.apclus <- apcluster(negDist...
Performance difference for control structures 'for' and 'foreach' in C#
...the lists indexer is implemented. As it turns out the enumerator for types based on arrays are normally written something like this:
private static IEnumerable<T> MyEnum(List<T> list)
{
for (int i = 0; i < list.Count; i++)
{
yield return list[i];
}
}
So as you c...
JPA: How to have one-to-many relation of the same Entity type
...I had some extensive business logic around hierarchical structure and JPA (based on relational model) is very weak to support it I introduced interface IHierarchyElement and entity listener HierarchyListener:
public interface IHierarchyElement {
public String getNodeId();
public IHierarch...
What is the difference between a process and a thread?
...rches of terms I use they don't understand, can't they, until they reach a base point they do understand. I was going to suggest you offer your own answer, but am happy to see you already have.
– Scott Langham
Jul 6 '16 at 20:48
...
Creating an index on a table variable
...t first.
SQL Server 2014
In addition to the methods of adding constraint based indexes discussed below SQL Server 2014 also allows non unique indexes to be specified directly with inline syntax on table variable declarations.
Example syntax for that is below.
/*SQL Server 2014+ compatible inlin...
OpenCV C++/Obj-C: Detecting a sheet of paper / Square Detection
...entPro angle() is a helper function. As stated in the answer, this code is based on samples/cpp/squares.cpp present in OpenCV.
– karlphillip
Oct 3 '13 at 0:11
...
Code-first vs Model/Database-first [closed]
...he pros & cons of using Entity Framework 4.1 Code-first over Model/Database-first with EDMX diagram?
10 Answers
...
How to change fontFamily of TextView in Android
...═══════════════╝
Here is the parser (based off FontListParser):
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
imp...
What is two way binding?
...
And with Firebase comes... 3-way databinding -> View, Model, Database. Just thought that was pretty neat.
– Levi Fuller
Jun 16 '16 at 2:52
...
Determine a string's encoding in C#
...ber of bytes).
The encoding and decoded text file is returned.
Purely byte-based solution for efficiency
As others have said, no solution can be perfect (and certainly one can't easily differentiate between the various 8-bit extended ASCII encodings in use worldwide), but we can get 'good enough' ...