#include?“Utils.h“
#include?
#include?
#include?
#include?

/////////////////////
//?DATA?GENERATION?//
/////////////////////

/**
?*?A?data?generator.
?**/
class?AbstractGen?{
public:
????virtual?vector?generateData（ostream?&out）?const?=?0;
};

/**
?*?Generates?a?collection?of?points?according?to?the?following?scheme:
?*??-?Choose?numCenters?centers?uniformly?at?random?in?a?hypercube.
?*??-?Choose?numPoints/numCenters?points?offset?by?a?normal?distribution?from?each?center.
?**/
class?SeparateNormalGen:?public?AbstractGen?{
private:
????int?myNumPoints?myNumCenters?myNumDims;
????Scalar?myCenterRange?myClusterStdDev;

public:
????SeparateNormalGen（int?numPoints?int?numCenters?int?numDims?Scalar?centerRange?
????????Scalar?clusterStdDev）?{
????????myNumPoints?=?numPoints;?myNumCenters?=?numCenters;?myNumDims?=?numDims;
????????myCenterRange?=?centerRange;?myClusterStdDev?=?clusterStdDev;
????}

????vector?generateData（ostream?&out）?const?{

????????//?Generate?the?data
	????vector?data;
	????vector?realCenters;
	????for?（int?i?=?0;?i?		????Point?normCenter?=?getRandomPoint（myNumDims）?*?myCenterRange;
		????realCenters.push_back（normCenter）;
		????for?（int?j?=?0;?j?			????data.push_back（getByNormDist（normCenter?myClusterStdDev））;
	????}

????????//?Report?general?info?about?the?data?set
????????out?<????????out?<????????out?<????????out?<????????out?<????????out?<????????out?<	????out?<
????????//?Return?the?data?set
????????return?data;
????}
};

/**
?*?Generates?a?collection?of?points?uniformly?at?random?in?a?hypercube.
?**/
class?UniformGen:?public?AbstractGen?{
private:
????int?myNumPoints?myNumDims;
????Scalar?myRange;

public:
????UniformGen（int?numPoints?int?numDims?Scalar?range）?{
????????myNumPoints?=?numPoints;?myNumDims?=?numDims;
????????myRange?=?range;
????}

????vector?generateData（ostream?&out）?const?{

????????//?Generate?the?data
????????vector?data;
	????for?（int?i?=?0;?i?????????????data.push_back（getRandomPoint（myNumDims）?*?myRange）;

????????//?Report?general?info?about?the?data?set
????????out?<????????out?<????????out?<????????out?<????????out?<