diff options
Diffstat (limited to 'include/pd.hpp')
-rw-r--r-- | include/pd.hpp | 82 |
1 files changed, 66 insertions, 16 deletions
diff --git a/include/pd.hpp b/include/pd.hpp index 04b8609..2641125 100644 --- a/include/pd.hpp +++ b/include/pd.hpp @@ -3,22 +3,32 @@ #include <cstdint> #include <fstream> #include <limits> +#include <map> #include <string> #include <vector> #include "misc.hpp" -template <typename T> class PD +template <typename T> class Interval { public: - class Interval - { - public: - T birth; - T death; - }; + inline T length() const { return death - birth; } + T birth; + T death; +}; - +template <typename T> inline bool operator==(Interval<T> x, Interval<T> y) { return x.birth == y.birth && x.death == y.death; } +template <typename T> inline bool operator!=(Interval<T> x, Interval<T> y) { return !(x == y); } +template <typename T> inline bool operator<(Interval<T> x, Interval<T> y) +{ + return (x.length() < y.length()) || + ((x.length() == y.length()) && (x.birth < y.birth)) || + (((x.length() == y.length()) && (x.birth == y.birth) && (x.death < y.death))); +} + +template <typename T> class PD +{ +public: PD() : intervals() { }; @@ -27,7 +37,7 @@ public: { if (m > 0 && b < d) { - Interval interval; + Interval<T> interval; interval.birth = b; interval.death = d; intervals.push_back(std::make_pair(interval, m)); @@ -45,18 +55,58 @@ public: } } - typename std::vector<std::pair<PD<T>::Interval, unsigned int> >::size_type size() const { return intervals.size(); } + void discretize(T delta) + { + if (delta <= 0) + return; + for (auto it = begin(); it != end(); ++it) + { + it->first.birth = std::round(it->first.birth/delta)*delta; + it->first.death = std::round(it->first.death/delta)*delta; + } + } + + void compress_and_sort() + { + std::map<Interval<T>, unsigned int> tmp; + for (auto it = cbegin(); it != cend(); ++it) + { + auto existing = tmp.find(it->first); + if (existing == tmp.end()) + { + tmp.insert(*it); + } + else + { + existing->second += it->second; + } + } + intervals = std::vector<std::pair<Interval<T>, unsigned int> >(tmp.cbegin(), tmp.cend()); + } + + unsigned int size() const + { + unsigned int ret = 0; + for (auto it = cbegin(); it != cend(); ++it) + ret += it->second; + return ret; + } + + inline typename std::vector<std::pair<Interval<T>, unsigned int> >::size_type size_2() const { return intervals.size(); } - using Iterator = typename std::vector<std::pair<PD<T>::Interval, unsigned int> >::const_iterator; + using Iterator = typename std::vector<std::pair<Interval<T>, unsigned int> >::iterator; + using Const_iterator = typename std::vector<std::pair<Interval<T>, unsigned int> >::const_iterator; - inline Iterator cbegin() const { return intervals.cbegin(); } - inline Iterator cend() const { return intervals.cend(); } + inline Const_iterator cbegin() const { return intervals.cbegin(); } + inline Const_iterator cend() const { return intervals.cend(); } + inline Iterator begin() { return intervals.begin(); } + inline Iterator end() { return intervals.end(); } private: - std::vector<std::pair<PD<T>::Interval, unsigned int> > intervals; + std::vector<std::pair<Interval<T>, unsigned int> > intervals; }; -inline double sqdist(PD<double>::Interval x, PD<double>::Interval y) +template <typename T> inline T sqdist(Interval<T> x, Interval<T> y) { return (x.birth - y.birth)*(x.birth - y.birth) + (x.death - y.death)*(x.death - y.death); } @@ -68,7 +118,7 @@ template <typename T> T heat_kernel(T sigma, const PD<T> & a, const PD<T> & b) for (auto it = a.cbegin(); it != a.cend(); ++it) { auto x = *it; - typename PD<T>::Interval xbar; + Interval<T> xbar; xbar.birth = x.first.death; xbar.death = x.first.birth; |