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#pragma once
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#include "Defines.h"
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#include "iAlgMath_global.h"
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class zxAlgMatrixCol;
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// 矩阵
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// 注:本矩阵类有些特殊,包括两个部分,由于时间限制,未做统一整合,后续再进行处理件
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// 1.处理解释中用的矩阵操作,以本类为载体,类缓存模式,并且引用 zxAlgMatrixCol,对应 zxAlgMatrix.cpp 文件
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// 2.拟合回归算法中用到的矩阵相关,大都是static函数,以VecDouble为载体,对应 zxAlgMatrixEx.cpp 文件
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class I_ALGMATH_EXPORT zxAlgMatrix
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{
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public:
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zxAlgMatrix();
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zxAlgMatrix(int rows, int cols, double val = 0.0);
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virtual ~zxAlgMatrix();
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/////////////////////////////////////////////////////////
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// 1.处理解释中用的矩阵操作,以本类为载体,类缓存模式,并且引用 zxAlgMatrixCol,对应 zxAlgMatrix.cpp 文件
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public:
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static zxAlgMatrix Zero(int nRow, int nCol); //初始化
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int rows() const; //获取行数
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int cols() const; //获取列数
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void set(int row, int col, double value); //设置元素
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double get(int row, int col) const; //获取元素
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double operator()(int row, int col = 0) const;//访问元素
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double& operator()(int row, int col = 0);
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zxAlgMatrix operator= (zxAlgMatrix other); //赋值函数
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zxAlgMatrix operator+ (zxAlgMatrix other); //矩阵相加
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zxAlgMatrix operator- (zxAlgMatrix other); //矩阵相减
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zxAlgMatrix operator* (zxAlgMatrix other); //矩阵相乘
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zxAlgMatrix operator/ (zxAlgMatrix& other);//矩阵相除
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zxAlgMatrixCol operator* (const zxAlgMatrixCol& vec); //矩阵与行列式相乘
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zxAlgMatrix operator-() ; //矩阵求负
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zxAlgMatrix transpose(); //矩阵转置
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zxAlgMatrix inverse(); //矩阵求逆
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double determinant(); //行列式
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protected:
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// 数据体
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VVecDouble m_vvecData;
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/////////////////////////////////////////////////////////
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// 2.拟合回归算法中用到的矩阵相关,大都是static函数,以VecDouble为载体,对应 zxAlgMatrixEx.cpp 文件
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public:
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// 求矩阵行列式。
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static double matrixDet(VecDouble vMatrix, int nRow);
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// 矩阵乘法,矩阵*矩阵
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static bool plusMatrix(VecDouble& vResult, int &nResultRow, \
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VecDouble vLeft, int nLetfRow, \
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VecDouble vRight, int nRightRow);
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// 矩阵乘法,矩阵*数值
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static bool plusMatrix(VecDouble& vResult, double dFactor);
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// 将矩阵由一维形式转为二维形式
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static bool vec2VecRow2D(VecDouble vec, int nRow, \
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VVecDouble& vec2D);
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// 行*列
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static bool plusRow(double& dResult,VecDouble vRow, \
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VecDouble vCol);
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// 求矩阵伴随阵
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static bool adjoinMatrix(VecDouble& vMatrix, int nRow);
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// 求矩阵某一个元素的代数余子式
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static bool cofactor(double &dResult, VecDouble vMatrix, \
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int nRow, int i, int j);
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// 矩阵求逆
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static bool inverseMatrix(VecDouble& vMatrix, int nRow);
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// 矩阵转置
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static bool transposeMatrix(VecDouble& vMatrix, int& nRow);
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// 矩阵加法
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static bool AddMatrix(VecDouble& vResult, int &nResultRow, \
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VecDouble vLeft, int nLetfRow, \
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VecDouble vRight, int nRightRow);
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// 矩阵减法
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static bool subMatrix(VecDouble& vResult, int& nResultRow, \
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VecDouble vLeft, int nLetfRow, \
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VecDouble vRight, int nRightRow);
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};
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// 列向量
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class I_ALGMATH_EXPORT zxAlgMatrixCol
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{
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public:
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zxAlgMatrixCol();
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zxAlgMatrixCol(int nRow, int nCol = 1, double val = 0.0);
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static zxAlgMatrixCol Zero(int nRow, int nCol = 1);
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int rows();
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double operator()(int i, int j = 0) const;
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double& operator()(int i, int j = 0);
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double& operator[](int i);
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const double& operator[](int i) const;
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// 赋值函数
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zxAlgMatrixCol operator=( zxAlgMatrixCol other);
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protected:
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// 数据体
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VecDouble m_vecData;
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};
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