const Cluster &KMeans::operator[](unsigned int u) const {
if (__k == 0) {
throw ZeroClustersEx();
}
if (u >= __k) {
throw DimensionalityMismatchEx(__k, u);
}
return *__clusters[u];
}
KMeans::KMeans(unsigned int dim, unsigned int k, std::string filename, unsigned int maxIter) :
__dimensionality(dim), __k(k), __iFileName(filename), __maxIter(maxIter) {
if (k == 0)
throw ZeroClustersEx();
std::ifstream iFile(filename.c_str());
if (iFile.fail())
throw DataFileOpenEx(filename);
iFile.close();
}
double Clustering::KMeans<k, dim>::computeDin() {
try {
if(clusterArr.size() == 0){
throw ZeroClustersEx();
}
double result;
for (int i = 0; i < clusterArr.size(); i++) {
result += clusterArr[i].intraClusterDistance();
}
//Din = result;
return result;
}
catch(double){
return 0;
}
}
// class KMeans {
// unsigned int __dimensionality;
// unsigned int __k;
// Cluster **__clusters;
// Point **__initCentroids;
// std::string __iFileName;
// unsigned int __maxIter;
// unsigned int __numIter;
// unsigned int __numNonempty;
// unsigned int __numMovesLastIter;
//
KMeans::KMeans(unsigned int dim, unsigned int k, std::string filename, unsigned int maxIter)
{
if (k==0)
{ throw ZeroClustersEx(); }
std::ifstream inFile;
inFile.open("filename");
if (!inFile)
{ throw DataFileOpenEx(filename); }
__dimensionality = dim;
__k = k;
__iFileName = filename;
__maxIter = maxIter;
__numNonempty = 1;
__numIter = 0;
}
double Clustering::KMeans<k, dim>::computeDout() {
try {
if(clusterArr.size() == 0){
throw ZeroClustersEx();
}
double result;
for (int i = 0; i < clusterArr.size(); i++) {
for (int j = 0; j < clusterArr.size(); j++) {
result += interClusterDistance(clusterArr[i], clusterArr[j]);
}
}
result /= 2;
//Dout = result;
return result;
}
catch(double){
return 0;
}
}