/**
* Construct a sparse matrix from another sparse matrix
*
* @param mat the original sparse matrix
* @param deap whether to copy the CCS structures
*/
public SparseMatrix(SparseMatrix mat, boolean deap) {
numRows = mat.numRows;
numColumns = mat.numColumns;
copyCRS(mat.rowData, mat.rowPtr, mat.colInd);
if (deap && mat.isCCSUsed) copyCCS(mat.colData, mat.colPtr, mat.rowInd);
}
/** @return the transpose of current matrix */
public SparseMatrix transpose() {
if (isCCSUsed) {
SparseMatrix tr = new SparseMatrix(numColumns, numRows);
tr.copyCRS(this.rowData, this.rowPtr, this.colInd);
tr.copyCCS(this.colData, this.colPtr, this.rowInd);
return tr;
} else {
Table<Integer, Integer, Double> dataTable = HashBasedTable.create();
for (MatrixEntry me : this) dataTable.put(me.column(), me.row(), me.get());
return new SparseMatrix(numColumns, numRows, dataTable);
}
}
