DIVAMatrixExport CDMatrix& operator=(const CVisDMatrix &mat)
-
Assignment operator (CVisDMatrix).
- Parameters:
- mat - Input matrix.
- Returns:
- This.
- Author:
- Rune Fisker
- Version:
- 3-14-2001
- DIVAMatrixExport CDMatrix& operator=(const CDMatrix &mat)
-
Assignment operator (CDMatrix).
- Parameters:
- mat - Input matrix.
- Returns:
- This.
- Author:
- Rune Fisker
- Version:
- 3-14-2001
- DIVAMatrixExport CDMatrix& operator=(double value)
-
Assignment operator (double). Set all values equal to 'value'.
- Parameters:
- value - Input double.
- Returns:
- This.
- Author:
- Rune Fisker
- Version:
- 3-14-2001
- DIVAMatrixExport void SumCol(CDVector& vSum) const
-
Calc the sum of each column into a vector.
The vector will be resized if it doesn't have the right length.
- Parameters:
- vSum - Output vector.
- Returns:
- Nothing.
- Author:
- Rune Fisker
- Version:
- 3-14-2001
- DIVAMatrixExport void MeanCol(CDVector& vMean) const
-
Calc the mean of each column into a vector.
The vector will be resized if it doesn't have the right length.
- Parameters:
- vMean - Output vector.
- Returns:
- Nothing.
- Author:
- Rune Fisker
- Version:
- 3-14-2001
- DIVAMatrixExport void VarCol(CDVector& vVar) const
-
Calc the variance of each column into a vector.
The vector will be resized if it doesn't have the right length.
- Parameters:
- vVar - Output vector.
- Returns:
- Nothing.
- Author:
- Rune Fisker
- Version:
- 3-14-2001
- DIVAMatrixExport void StdCol(CDVector& vStd) const
-
Calc the standard deviation of each column into a vector.
The vector will be resized if it doesn't have the right length.
- Parameters:
- vStd - Output vector.
- Returns:
- Nothing.
- Author:
- Rune Fisker
- Version:
- 3-14-2001
- DIVAMatrixExport double Sum() const
-
Calc the total sum of the matrix.
- Returns:
- The sum.
- Author:
- Rune Fisker
- Version:
- 3-14-2001
- DIVAMatrixExport double Mean() const
-
Calcs the mean value of the matrix.
- Returns:
- The mean value.
- Author:
- Rune Fisker
- Version:
- 3-14-2001
- DIVAMatrixExport double Var() const
-
Calc the variance of the matrix.
- Returns:
- The variance value.
- Author:
- Rune Fisker
- Version:
- 3-14-2001
- DIVAMatrixExport double Std() const
-
Calc the standard diviation of the matrix.
- Returns:
- The standard diviation value.
- Author:
- Rune Fisker
- Version:
- 3-14-2001
- DIVAMatrixExport void OneWayANOVA(double& dZ, int& nDFModel, int& nDFError) const
-
Determination of the fluctuations observed
in a sample, and their dependencies in the
form of a one-way analysis of variance
(ANOVA).
- Parameters:
- dZ -
nDFModel -
nDFError -
- Returns:
- Nothing.
- Author:
- Rune Fisker
- Version:
- 3-14-2001
- DIVAMatrixExport void TTest( const int iCol1, const int iCol2, double& dZ, int& nDF ) const
-
Student's T-test.
- Parameters:
- iCol1 -
iCol2 -
dZ -
nDF -
- Returns:
- Nothing.
- Author:
- Rune Fisker
- Version:
- 3-14-2001
- DIVAMatrixExport void Row(int i, CDVector& vRow) const
-
Return the i-th row of the matrix.
The vector will be resized if it doesn't have the right length.
Notice that due to the row major nature of matrices, row
read/writes are *much* faster than col read/writes.
Alternatively, one could use the more costly
CVisDVector CVisDMatrix::Row(int r) method.
To set the i-th row use:
void CVisDMatrix::SetRow(int r, const CVisDVector &v)
- Parameters:
- i - The row number.
vRow - Output vector;
- Returns:
- Nothing.
- Author:
- Mikkel B. Stegmann
- Version:
- 3-14-2001
- DIVAMatrixExport void Col(int i, CDVector& vCol) const
-
Return the i-th column of the matrix.
The vector will be resized if it doesn't have the right length.
Alternatively, one could use the more costly
CVisDVector CVisDMatrix::Column(int r) method.
To set the i-th col use:
void CVisDMatrix::SetColumn(int c, const CVisDVector &v)
- Parameters:
- i - The column number.
vCol - Output vector;
- Returns:
- Nothing.
- Author:
- Rune Fisker
- Version:
- 3-14-2001
- DIVAMatrixExport void Diag(const CDVector &vec)
-
This function transforms the matrix into a diagonal matrix,
with the values of 'vec' in the diagonal.
- Parameters:
- vec - Vector to place in the diagonal.
- Returns:
- Nothing.
- Author:
- Rune Fisker
- Version:
- 3-14-2001
- DIVAMatrixExport CDString ToString() const
-
Returns a string representing the matrix.
- Returns:
- A string.
- Author:
- Rune Fisker
- Version:
- 3-14-2001
- DIVAMatrixExport void CombVert(CVisDMatrix &Top, CVisDMatrix &Bottom)
-
Composes the matrix of Top and Bottom (on top of each other).
- Parameters:
- Top - Matrix to be placed in the top of this matrix.
Bottom - Matrix to be placed in the bottom of this matrix.
- Returns:
- Nothing.
- Author:
- Rune Fisker
- Version:
- 3-14-2001
- DIVAMatrixExport void ToMatlab( const CDString& sFilename, const CDString& sName, const CDString& sComment, bool fAppend) const
-
Writes the matrix to disk in MatLab (.m) format.
To read the matrix into MatLab write e.g.
'my_matrix.m' at the MatLab prompt.
Notice that this should be used for storage a (really)
large matrices, due to the computational and i/o overhead
induced by the simple MatLab text format.
Also, remember that MatLab can't read (.m) files with lines
longer than 4096 bytes.
If no communication with MatLab is needed, but merely
to/from disk functionality within a DIVA program, it is
suggested to use the fast binary i/o methods ToFile() and
FromFile().
- Parameters:
- sFilename - Output file name. Should have the extension '.m'.
sName - Name of destination matlab variable.
sComment - Optional comment inside the file.
fAppend - If true, the vector is appended to the file
'sFilename'.
- Returns:
- Nothing.
- Author:
- Henrik Aanęs
- Version:
- 14-7-1999
- DIVAMatrixExport void Sqrt()
-
Takes the square root of each element.
- Returns:
- Nothing.
- Author:
- Rune Fisker
- Version:
- 5-1-1999
- DIVAMatrixExport void Sqr()
-
Takes the power of two of each element.
- Returns:
- Nothing.
- Author:
- Rune Fisker
- Version:
- 5-1-1999
- DIVAMatrixExport void ElementMultiply(const CDMatrix& matrix)
-
Multiply each element in the matrix with
the corresponding element of the input matrix.
- Returns:
- Nothing.
- Author:
- Rune Fisker
- Version:
- 5-1-1999
- DIVAMatrixExport void ElementDivide(const CDMatrix& matrix)
-
Divide each element in the matrix with
the corresponding element of the input matrix.
- Returns:
- Nothing.
- Author:
- Rune Fisker
- Version:
- 5-1-1999
- DIVAMatrixExport void FromMatlab(const CDString& sFilename, const CDString& sName)
-
Reads a matrix from disk in MatLab (.m) format into
'this'.
Notice that this should be used for storage a (really)
large matrices, due to the computational and i/o overhead
induced by the simple MatLab text format.
Also, remember that MatLab can't read (.m) files with lines
longer than 4096 bytes.
If no communication with MatLab is needed, but merely
to/from disk functionality within a DIVA program, it is
suggested to use the fast binary i/o methods ToFile() and
FromFile().
- Parameters:
- sFilename - Input file name.
sName - The name to search for (and load) inside the matlab file.
- Returns:
- Nothing.
- Author:
- Henrik Aanęs
- Version:
- 14-7-1999
- DIVAMatrixExport void ToFile(const CDString & sFilename) const
-
Writes the matrix to disk in binary format.
The dimensions are saved as two doubles (!!?)
(rows,cols) in the start.
Modified: Mikkel B. Stegmann 14/3-00
- Parameters:
- sFilename - Input file name.
- Returns:
- Nothing.
- Author:
- Henrik Aanęs
- Version:
- 7-22-1999
- See Also:
- FromFile
- DIVAMatrixExport void ToFile( FILE* fh ) const
-
Writes the matrix to disk in binary format.
The dimensions are saved as two doubles (!!?)
(rows,cols) in the start.
The matrix is written to the binary file 'fh'
at the current position of the file pointer.
Modified: Mikkel B. Stegmann 14/3-00
- Parameters:
- fh - Open file handle.
- Returns:
- Nothing.
- Author:
- Mikkel B. Stegmann
- Version:
- 4-14-1999
- See Also:
- FromFile
- DIVAMatrixExport void FromFile(const CDString & sFilename)
-
Reads a matrix from disk in binary format, as
written from CDMatrix::ToFile().
The matrix is resizew if it doesn't fit the
disk matrix.
- Parameters:
- sFilename - Input file name.
- Returns:
- Nothing.
- Author:
- Mikkel B. Stegmann
- Version:
- 3-14-2000
- See Also:
- ToFile
- DIVAMatrixExport void FromFile( FILE* fh )
-
Reads a matrix from disk in binary format (from
the current position of the file pointer), as
written from CDMatrix::ToFile().
The matrix is resizew if it doesn't fit the
disk matrix.
- Parameters:
- fh - Open file handle.
- Returns:
- Nothing.
- Author:
- Mikkel B. Stegmann
- Version:
- 3-14-2000
- See Also:
- ToFile
- DIVAMatrixExport void Kron(CDMatrix &mX, CDMatrix &mY)
-
Forms the Kronecker tensor product of two matrices.
The result is placed in this.
- Returns:
- Nothing.
- Author:
- Rune Fisker
- Version:
- 5-1-1999
- DIVAMatrixExport void Eye()
-
Converts the matrix in the identity matrix -
i.e. zeros all-over except the ones in the diagonal.
- Returns:
- Nothing.
- Author:
- Rune Fisker
- Version:
- 5-1-1999
- DIVAMatrixExport void ToLaTeX( const CDString& sFilename, const CDString& sVarName, const CDString& sComment, bool fWriteAsTable, const CDString& sNumFmt, const CDString& sBracketType, bool fAppend ) const
-
Writes the matrix in LaTeX format. Throws: CVisError.
- Parameters:
- sFilename - Destination file name.
sVarName - Name of matrix.
sComment - Comment in the LaTeX file.
fWriteAsTable - If true the matrix is formatted as a table.
sNumFmt - printf c-stype format of numbers, e.g. "%.2f".
sBracketType - Either "[" or "(".
fAppend - If true 'sFilename' is append with this matrix.
- Returns:
- Nothing.
- Author:
- Mikkel B. Stegmann
- Version:
- 4-5-2000
- DIVAMatrixExport void TriU( CDMatrix &matrix, const int K ) const
-
Extracts the elements on and above the K-th diagonal.
K = 0 is the main diagonal, K > 0 is above the main
diagonal and K < 0 is below the main diagonal.
- Returns:
- Nothing.
- Author:
- Lars Pedersen
- Version:
- 5-12-2000
- DIVAMatrixExport void TriL( CDMatrix &matrix, const int K ) const
-
Extracts the elements on and below the K-th diagonal.
K = 0 is the main diagonal, K > 0 is above the main
diagonal and K < 0 is below the main diagonal.
- Returns:
- Nothing.
- Author:
- Lars Pedersen
- Version:
- 6-12-2000
- DIVAMatrixExport void Eq(const double B, CDMatrix& C ) const
-
Compares each element in this matrix (A) with double B.
Result matrix C has elements with values 1 or 0.
C(i,j) = 1 if A(i,j) == B
C(i,j) = 0 else
- Returns:
- Nothing.
- Author:
- Lars Pedersen
- Version:
- 6-12-2000
- DIVAMatrixExport void Eq( const CDMatrix& B, CDMatrix& C ) const
-
Compares each element in this matrix (A) with
corresponding element in B.
Result matrix C has elements with values 1 or 0.
C(i,j) = 1 if A(i,j) == B(i,j)
C(i,j) = 0 else
- Returns:
- Nothing.
- Author:
- Lars Pedersen
- Version:
- 7-12-2000
- DIVAMatrixExport void Ne(const double B, CDMatrix& C ) const
-
Compares each element in this matrix (A) with double B.
Result matrix C has elements with values 1 or 0.
C(i,j) = 1 if A(i,j) != B
C(i,j) = 0 else
- Returns:
- Nothing.
- Author:
- Lars Pedersen
- Version:
- 7-12-2000
- DIVAMatrixExport void Ne( const CDMatrix& B, CDMatrix& C ) const
-
Compares each element in this matrix (A) with
corresponding element in B.
Result matrix C has elements with values 1 or 0.
C(i,j) = 1 if A(i,j) != B(i,j)
C(i,j) = 0 else
- Returns:
- Nothing.
- Author:
- Lars Pedersen
- Version:
- 7-12-2000
- DIVAMatrixExport void Lt(const double B, CDMatrix& C ) const
-
Compares each element in this matrix (A) with double B.
Result matrix C has elements with values 1 or 0.
C(i,j) = 1 if A(i,j) < B
C(i,j) = 0 else
- Returns:
- Nothing.
- Author:
- Lars Pedersen
- Version:
- 7-12-2000
- DIVAMatrixExport void Lt( const CDMatrix& B, CDMatrix& C ) const
-
Compares each element in this matrix (A) with
corresponding element in B.
Result matrix C has elements with values 1 or 0.
C(i,j) = 1 if A(i,j) < B(i,j)
C(i,j) = 0 else
- Returns:
- Nothing.
- Author:
- Lars Pedersen
- Version:
- 7-12-2000
- DIVAMatrixExport void Le(const double B, CDMatrix& C ) const
-
Compares each element in this matrix (A) with double B.
Result matrix C has elements with values 1 or 0.
C(i,j) = 1 if A(i,j) <= B
C(i,j) = 0 else
- Returns:
- Nothing.
- Author:
- Lars Pedersen
- Version:
- 7-12-2000
- DIVAMatrixExport void Le( const CDMatrix& B, CDMatrix& C ) const
-
Compares each element in this matrix (A) with
corresponding element in B.
Result matrix C has elements with values 1 or 0.
C(i,j) = 1 if A(i,j) <= B(i,j)
C(i,j) = 0 else
- Returns:
- Nothing.
- Author:
- Lars Pedersen
- Version:
- 7-12-2000
- DIVAMatrixExport void Gt(const double B, CDMatrix& C ) const
-
Compares each element in this matrix (A) with double B.
Result matrix C has elements with values 1 or 0.
C(i,j) = 1 if A(i,j) > B
C(i,j) = 0 else
- Returns:
- Nothing.
- Author:
- Lars Pedersen
- Version:
- 7-12-2000
- DIVAMatrixExport void Gt( const CDMatrix& B, CDMatrix& C ) const
-
Compares each element in this matrix (A) with
corresponding element in B.
Result matrix C has elements with values 1 or 0.
C(i,j) = 1 if A(i,j) > B(i,j)
C(i,j) = 0 else
- Returns:
- Nothing.
- Author:
- Lars Pedersen
- Version:
- 7-12-2000
- DIVAMatrixExport void Ge(const double B, CDMatrix& C ) const
-
Compares each element in this matrix (A) with double B.
Result matrix C has elements with values 1 or 0.
C(i,j) = 1 if A(i,j) >= B
C(i,j) = 0 else
- Returns:
- Nothing.
- Author:
- Lars Pedersen
- Version:
- 7-12-2000
- DIVAMatrixExport void Ge( const CDMatrix& B, CDMatrix& C ) const
-
Compares each element in this matrix (A) with
corresponding element in B.
Result matrix C has elements with values 1 or 0.
C(i,j) = 1 if A(i,j) <= B(i,j)
C(i,j) = 0 else
- Returns:
- Nothing.
- Author:
- Lars Pedersen
- Version:
- 7-12-2000
- DIVAMatrixExport void Log()
-
Takes the natural logarithm (base e=2.71..) of each matrix element.
- Returns:
- Nothing.
- Author:
- Lars Pedersen
- Version:
- 7-12-2000
- DIVAMatrixExport void FlipLR()
-
FlipLR modifies the matrix with row preserved
and columns flipped in the left/right direction.
- Returns:
- Nothing.
- Author:
- Mikkel B. Stegmann
- Version:
- 3-9-2001
- See Also:
- FlipUD
- DIVAMatrixExport void FlipUD()
-
FlipUD(X) modifies the matrix with columns preserved
and rows flipped in the up/down direction.
- Returns:
- Nothing.
- Author:
- Mikkel B. Stegmann
- Version:
- 3-9-2001
- See Also:
- FlipLR
- DIVAMatrixExport void Rand()
-
Inserts uniformly distributed random numbers in
the range [0;1].
- Returns:
- Nothing.
- Author:
- Mikkel B. Stegmann
- Version:
- 3-9-2001
- DIVAMatrixExport void OuterProduct(const CDVector &v1, const CDVector &v2)
-
Forms the outer product of two vectors and store the result in this.
If the matrix does have the correct size, it will be resized.
- Parameters:
- v1 - Input vector.
v2 - Input vector.
- Returns:
- Nothing.
- Author:
- Mikkel B. Stegmann
- Version:
- 3-16-2001
- DIVAMatrixExport double Det() const
-
Calculates the determinant of a square matrix up to the 3rd order.
- Returns:
- The determinant.
- Author:
- Mikkel B. Stegmann
- Version:
- 6-25-2001
- DIVAMatrixExport double Trace() const
-
Calculates the trace - i.e. the sum of diagonal elements.
- Returns:
- The trace.
- Author:
- Mikkel B. Stegmann
- Version:
- 6-25-2001
- DIVAMatrixExport void ToVector( CDVector &v, bool rowWise )
-
Converts this matrix to a vector, either by row (default) or column.
- Parameters:
- v - Output vector
rowWise - If true (default) matrix data is extracted row-wise.
If false matrix data is extracted column-wise.
- Returns:
- Nothing.
- Author:
- Mikkel B. Stegmann
- Version:
- 5-15-2002
![[more]](icon1.gif)
DIVAMatrixExport void