npstat::NUHistoAxis Class Reference

#include <NUHistoAxis.h>

Public Member Functions
double	binCenter (const int binNum) const
Interval< double >	binInterval (const int binNum) const
int	binNumber (double x) const
unsigned	closestValidBin (double x) const
double	fltBinNumber (double x, bool mapLeftEdgeTo0=true) const
bool	isClose (const NUHistoAxis &, double tol) const
double	leftBinEdge (const int binNum) const
	NUHistoAxis (const std::vector< double > &binEdges, const char *label=0)
bool	operator!= (const NUHistoAxis &) const
bool	operator== (const NUHistoAxis &) const
NUHistoAxis	rebin (unsigned newBins) const
double	rightBinEdge (const int binNum) const
void	setLabel (const char *newlabel)
double	min () const
double	max () const
Interval< double >	interval () const
double	length () const
unsigned	nBins () const
double	binWidth (const int binNum) const
const std::string &	label () const
bool	isUniform () const
gs::ClassId	classId () const
bool	write (std::ostream &of) const

Static Public Member Functions
static const char *	classname ()
static NUHistoAxis *	read (const gs::ClassId &id, std::istream &in)
static unsigned	version ()

Private Member Functions
	NUHistoAxis (unsigned nBins, double min, double max, const char *label=0)
	NUHistoAxis ()
unsigned	overflowIndex (const double x, unsigned *binNum) const

Private Attributes
std::vector< double >	binEdges_
std::string	label_
double	max_
double	min_
unsigned	nBins_
bool	uniform_

Friends
class	DualHistoAxis
template<typename Numeric , class Axis >
class	HistoND

Detailed Description

This class can be used to create histograms with non-uniform binning

Definition at line 27 of file NUHistoAxis.h.

Constructor & Destructor Documentation

npstat::NUHistoAxis::NUHistoAxis	(	const std::vector< double > &	binEdges,
		const char *	label = 0
	)

The number of bin edges provided must be at least 2. Edge coordinates will be sorted internally in the increasing order. The number of bins will be less by 1 than the number of edges.

Definition at line 15 of file NUHistoAxis.cc.

References binEdges_, label_, max_, min_, nBins_, python.multivaluedict::sort(), and AlCaHLTBitMon_QueryRunRegistry::string.

        : binEdges_(binEdges), nBins_(binEdges.size() - 1U), uniform_(false)
    {
        if (!(binEdges_.size() > 1U && binEdges_.size() < UINT_MAX/2U))
            throw npstat::NpstatInvalidArgument("In npstat::NUHistoAxis constructor: "
                                        "number of bin edges is out of range");
        std::sort(binEdges_.begin(), binEdges_.end());
        min_ = binEdges_[0];
        max_ = binEdges_[nBins_];
        if (label)
            label_ = std::string(label);
    }

npstat::NUHistoAxis::NUHistoAxis ( unsigned  nBins, double  min, double  max, const char *  label = 0  )

private

Definition at line 29 of file NUHistoAxis.cc.

References binEdges_, label_, max_, min_, nBins_, AlCaHLTBitMon_QueryRunRegistry::string, and std::swap().

        : min_(min), max_(max), nBins_(nBins), uniform_(true)
    {
        if (!(nBins_ && nBins_ < UINT_MAX/2U - 1U))
            throw npstat::NpstatInvalidArgument("In npstat::NUHistoAxis constructor: "
                                        "number of bins is out of range");
        if (min_ > max_)
            std::swap(min_, max_);
        binEdges_ = EquidistantInLinearSpace(min_, max_, nBins+1U);
        if (label)
            label_ = std::string(label);
    }

npstat::NUHistoAxis::NUHistoAxis ( )

inlineprivate

Definition at line 137 of file NUHistoAxis.h.

Referenced by read(), and rebin().

                             : min_(0.0), max_(0.0),
                               nBins_(0), uniform_(false) {}

Member Function Documentation

double npstat::NUHistoAxis::binCenter ( const int  binNum ) const

inline

Return the coordinate of the given bin center

Definition at line 60 of file NUHistoAxis.h.

References binEdges_.

Referenced by npstat::DualHistoAxis::binCenter(), and npstat::convertToGridAxis().

            {return 0.5*(binEdges_.at(binNum) + binEdges_.at(binNum + 1));}

Interval<double> npstat::NUHistoAxis::binInterval ( const int  binNum ) const

inline

Return the coordinate interval occupied by the given bin

Definition at line 64 of file NUHistoAxis.h.

References binEdges_.

Referenced by npstat::DualHistoAxis::binInterval().

            {return Interval<double>(binEdges_.at(binNum),
                                     binEdges_.at(binNum + 1));}

int npstat::NUHistoAxis::binNumber

(

double

x

)

const

This method returns -1 for values below the lower limit and "nBins()" for values equal to or above the upper limit

Definition at line 78 of file NUHistoAxis.cc.

References binEdges_, and delta.

Referenced by npstat::DualHistoAxis::binNumber(), and overflowIndex().

    {
        const int delta = std::upper_bound(binEdges_.begin(), binEdges_.end(), x) - 
                          binEdges_.begin();
        return delta - 1;
    }

double npstat::NUHistoAxis::binWidth ( const int  binNum ) const

inline

Definition at line 45 of file NUHistoAxis.h.

References binEdges_.

Referenced by npstat::DualHistoAxis::binWidth().

            {return binEdges_.at(binNum+1) - binEdges_.at(binNum);}

gs::ClassId npstat::NUHistoAxis::classId ( ) const

inline

Method related to "geners" I/O

Definition at line 101 of file NUHistoAxis.h.

Referenced by npstat::DualHistoAxis::write().

{return gs::ClassId(*this);}

static const char* npstat::NUHistoAxis::classname ( )

inlinestatic

Definition at line 105 of file NUHistoAxis.h.

{return "npstat::NUHistoAxis";}

unsigned npstat::NUHistoAxis::closestValidBin

(

double

x

)

const

This method returns the closest valid bin number (above 0 and below nBins() )

Definition at line 150 of file NUHistoAxis.cc.

References binEdges_, delta, and nBins_.

Referenced by npstat::DualHistoAxis::closestValidBin().

    {
        const int delta = std::upper_bound(binEdges_.begin(), binEdges_.end(), x) - 
                          binEdges_.begin();
        int binnum = delta - 1;
        if (binnum < 0)
            binnum = 0;
        else if (static_cast<unsigned>(binnum) >= nBins_)
            binnum = nBins_ - 1U;
        return binnum;
    }

double npstat::NUHistoAxis::fltBinNumber	(	double	x,
		bool	mapLeftEdgeTo0 = true
	)		const

Floating point bin number given the coordinate. Useful for interpolation methods and such.

Definition at line 85 of file NUHistoAxis.cc.

References binEdges_, delta, and nBins_.

Referenced by npstat::DualHistoAxis::fltBinNumber().

    {
        const int delta = std::upper_bound(binEdges_.begin(), binEdges_.end(), x) - 
                          binEdges_.begin();
        const int binnum = delta - 1;

        if (binnum < 0)
        {
            const double left = binEdges_[0];
            const double right = binEdges_[1];
            double bval = (x - left)/(right - left);
            if (!mapLeftEdgeTo0)
                bval -= 0.5;
            if (bval < -1.0)
                bval = -1.0;
            return bval;
        }
        else if (static_cast<unsigned>(binnum) >= nBins_)
        {
            const double left = binEdges_[nBins_ - 1U];
            const double right = binEdges_[nBins_];
            double bval = nBins_ - 1U + (x - left)/(right - left);
            if (!mapLeftEdgeTo0)
                bval -= 0.5;
            if (bval > static_cast<double>(nBins_))
                bval = nBins_;
            return bval;
        }
        else
        {
            const double left = binEdges_[binnum];
            const double right = binEdges_[delta];
            if (mapLeftEdgeTo0)
                return binnum + (x - left)/(right - left);
            else
            {
                // It is not obvious what is best to do here.
                // The following works to preserve interpolation
                // of 0th order. The commented out snippet below
                // would instead connect bin centers by straight
                // lines during interpolation.
                return binnum + (x - left)/(right - left) - 0.5;

                // Bin center is mapped to binnum.
                // Bin center of the next bin is mapped to binnum + 1.
                // Bin center of the previous bin is mapped to binnum - 1.
                //
                // const double binCenter = (left + right)/2.0;
                // if ((binnum == 0 && x <= binCenter) ||
                //     (static_cast<unsigned>(binnum) == nBins_ - 1 && x >= binCenter))
                //     return binnum + (x - left)/(right - left) - 0.5;
                // else if (x <= binCenter)
                // {
                //     const double otherBinCenter = (left + binEdges_[binnum - 1])/2.0;
                //     return binnum + (x - binCenter)/(binCenter - otherBinCenter);
                // }
                // else
                // {
                //     const double otherBinCenter = (right + binEdges_[binnum + 2])/2.0;
                //     return binnum + (x - binCenter)/(otherBinCenter - binCenter);
                // }
            }
        }
    }

Interval<double> npstat::NUHistoAxis::interval ( ) const

inline

Definition at line 41 of file NUHistoAxis.h.

References max_, and min_.

Referenced by npstat::DualHistoAxis::interval().

            {return Interval<double>(min_, max_);}

bool npstat::NUHistoAxis::isClose	(	const NUHistoAxis &	r,
		double	tol
	)		const

Comparison of axis coordinates within given tolerance

Definition at line 49 of file NUHistoAxis.cc.

References binEdges_, npstat::closeWithinTolerance(), i, label_, max_, min_, nBins_, and uniform_.

Referenced by npstat::DualHistoAxis::isClose().

    {
        if (!(closeWithinTolerance(min_, r.min_, tol) && 
              closeWithinTolerance(max_, r.max_, tol) &&
              label_ == r.label_ &&
              nBins_ == r.nBins_ &&
              uniform_ == r.uniform_))
            return false;
        for (unsigned i=0; i<nBins_; ++i)
            if (!closeWithinTolerance(binEdges_[i], r.binEdges_[i], tol))
                return false;
        return true;
    }

bool npstat::NUHistoAxis::isUniform ( ) const

inline

Definition at line 48 of file NUHistoAxis.h.

References uniform_.

{return uniform_;}

const std::string& npstat::NUHistoAxis::label ( ) const

inline

Definition at line 47 of file NUHistoAxis.h.

References label_.

Referenced by npstat::convertToGridAxis(), npstat::DualHistoAxis::label(), and read().

{return label_;}

double npstat::NUHistoAxis::leftBinEdge ( const int  binNum ) const

inline

Return the coordinate of the given bin left edge

Definition at line 52 of file NUHistoAxis.h.

References binEdges_.

Referenced by npstat::DualHistoAxis::leftBinEdge().

            {return binEdges_.at(binNum);}

double npstat::NUHistoAxis::length ( ) const

inline

Definition at line 43 of file NUHistoAxis.h.

References max_, and min_.

Referenced by npstat::DualHistoAxis::length().

{return max_ - min_;}

double npstat::NUHistoAxis::max ( ) const

inline

Definition at line 40 of file NUHistoAxis.h.

References max_.

Referenced by npstat::DualHistoAxis::max().

{return max_;}

double npstat::NUHistoAxis::min ( ) const

inline

Examine axis properties

Definition at line 39 of file NUHistoAxis.h.

References min_.

Referenced by npstat::DualHistoAxis::min().

{return min_;}

unsigned npstat::NUHistoAxis::nBins ( ) const

inline

Definition at line 44 of file NUHistoAxis.h.

References nBins_.

Referenced by npstat::convertToGridAxis(), and npstat::DualHistoAxis::nBins().

{return nBins_;}

bool npstat::NUHistoAxis::operator!=

(

const NUHistoAxis &

r

)

const

Definition at line 73 of file NUHistoAxis.cc.

References alignCSCRings::r.

    {
        return !(*this == r);
    }

bool npstat::NUHistoAxis::operator==

(

const NUHistoAxis &

r

)

const

Definition at line 63 of file NUHistoAxis.cc.

References binEdges_, label_, max_, min_, nBins_, and uniform_.

    {
        return min_ == r.min_ && 
               max_ == r.max_ && 
               label_ == r.label_ &&
               nBins_ == r.nBins_ &&
               binEdges_ == r.binEdges_ &&
               uniform_ == r.uniform_;
    }

unsigned npstat::NUHistoAxis::overflowIndex ( const double  x, unsigned *  binNum  ) const

inlineprivate

Definition at line 123 of file NUHistoAxis.h.

References binNumber(), max_, and min_.

Referenced by npstat::DualHistoAxis::overflowIndex().

        {
            if (x < min_)
                return 0U;
            else if (x >= max_)
                return 2U;
            else
            {
                *binNum = binNumber(x);
                return 1U;
            }
        }

NUHistoAxis * npstat::NUHistoAxis::read ( const gs::ClassId &  id, std::istream &  in  )

static

Definition at line 171 of file NUHistoAxis.cc.

References cond::rpcobimon::current, label(), NUHistoAxis(), query::result, AlCaHLTBitMon_QueryRunRegistry::string, and uniform_.

Referenced by npstat::DualHistoAxis::read().

    {
        static const gs::ClassId current(gs::ClassId::makeId<NUHistoAxis>());
        current.ensureSameId(id);

        std::vector<double> binEdges;
        std::string label;
        unsigned char unif;
        gs::read_pod_vector(in, &binEdges);
        gs::read_pod(in, &label);
        gs::read_pod(in, &unif);
        if (in.fail())
            throw gs::IOReadFailure("In npstat::UHistoAxis::read: "
                                    "input stream failure");
        NUHistoAxis* result = new NUHistoAxis(binEdges, label.c_str());
        result->uniform_ = unif;
        return result;
    }

NUHistoAxis npstat::NUHistoAxis::rebin

(

unsigned

newBins

)

const

Return uniformly rebinned axis

Definition at line 44 of file NUHistoAxis.cc.

References label_, max_, min_, and NUHistoAxis().

    {
        return NUHistoAxis(newBins, min_, max_, label_.c_str());
    }

double npstat::NUHistoAxis::rightBinEdge ( const int  binNum ) const

inline

Return the coordinate of the given bin right edge

Definition at line 56 of file NUHistoAxis.h.

References binEdges_.

Referenced by npstat::DualHistoAxis::rightBinEdge().

            {return binEdges_.at(binNum + 1);}

void npstat::NUHistoAxis::setLabel ( const char *  newlabel )

inline

Change the axis label

Definition at line 69 of file NUHistoAxis.h.

References label_.

Referenced by npstat::DualHistoAxis::setLabel().

            {label_ = newlabel ? newlabel : "";}

static unsigned npstat::NUHistoAxis::version ( )

inlinestatic

Definition at line 106 of file NUHistoAxis.h.

Referenced by validation.Sample::datasetpattern(), and validation.Sample::filename().

{return 1;}

bool npstat::NUHistoAxis::write

(

std::ostream &

of

)

const

Definition at line 162 of file NUHistoAxis.cc.

References binEdges_, EnergyCorrector::c, label_, and uniform_.

Referenced by npstat::DualHistoAxis::write().

    {
        gs::write_pod_vector(of, binEdges_);
        gs::write_pod(of, label_);
        unsigned char c = uniform_;
        gs::write_pod(of, c);
        return !of.fail();
    }

Friends And Related Function Documentation

friend class DualHistoAxis

friend

Definition at line 121 of file NUHistoAxis.h.

template<typename Numeric , class Axis >

friend class HistoND

friend

Definition at line 120 of file NUHistoAxis.h.

Member Data Documentation

std::vector<double> npstat::NUHistoAxis::binEdges_

private

Definition at line 115 of file NUHistoAxis.h.

Referenced by binCenter(), binInterval(), binNumber(), binWidth(), closestValidBin(), fltBinNumber(), isClose(), leftBinEdge(), NUHistoAxis(), operator==(), rightBinEdge(), and write().

std::string npstat::NUHistoAxis::label_

private

Definition at line 116 of file NUHistoAxis.h.

Referenced by Mixins._Labelable::_findDependencies(), isClose(), label(), NUHistoAxis(), operator==(), rebin(), setLabel(), Mixins._Labelable::setLabel(), and write().

double npstat::NUHistoAxis::max_

private

Definition at line 114 of file NUHistoAxis.h.

Referenced by interval(), isClose(), length(), max(), NUHistoAxis(), operator==(), overflowIndex(), and rebin().

double npstat::NUHistoAxis::min_

private

Definition at line 113 of file NUHistoAxis.h.

Referenced by interval(), isClose(), length(), min(), NUHistoAxis(), operator==(), overflowIndex(), and rebin().

unsigned npstat::NUHistoAxis::nBins_

private

Definition at line 117 of file NUHistoAxis.h.

Referenced by closestValidBin(), fltBinNumber(), isClose(), nBins(), NUHistoAxis(), and operator==().

bool npstat::NUHistoAxis::uniform_

private

Definition at line 118 of file NUHistoAxis.h.

Referenced by isClose(), isUniform(), operator==(), read(), and write().