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printsorted() implementation

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Jiri Pittner
2025-03-04 16:06:16 +01:00
parent ecdd2fefa5
commit ad1bee99a5
4 changed files with 91 additions and 1 deletions
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15
smat.h
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@@ -164,6 +164,7 @@ public:
inline bool transp(const int i, const int j) const {return i>j;} //this can be used for compact storage of matrices, which are actually not symmetric, but one triangle of them is redundant
const typename LA_traits<T>::normtype norm(const T scalar = (T)0) const;
void axpy(const T alpha, const NRSMat &x); // this+= a*x
inline const T amax() const;
inline const T amin() const;
@@ -186,6 +187,9 @@ public:
void storesubmatrix(const int from, const NRSMat &rhs);
void storesubmatrix(const NRVec<int> &selection, const NRSMat &rhs);
//!print sorted list of matrix elements
void printsorted(std::ostream &s, int direction=1, bool absvalue=false, bool stable=false, typename LA_traits<T>::normtype thr=0, int topmax=0) const;
inline operator T*();
inline operator const T*() const;
@@ -1245,6 +1249,17 @@ for(int i=0; i<b.nrows(); ++i)
a(i,j) = (T) b(i,j);
}
template<typename T>
void NRSMat<T>::printsorted(std::ostream &s, int direction, bool absvalue, bool stable, typename LA_traits<T>::normtype thr, int topmax) const
{
NRMat<int> indexmap(NN2,2);
NRVec tmp(*this);
int ii=0;
for(int i=0; i<nn; ++i) for(int j=0; j<=i; ++j) {indexmap[ii][1]=i; indexmap[ii][0]=j; ii++;}
tmp.printsorted(s,direction,absvalue,stable,thr,topmax,&indexmap);
}
/***************************************************************************//**
* generate operators relating NRSMat<T> objects and scalars