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authorNorbert Preining <norbert@preining.info>2020-06-13 03:02:55 +0000
committerNorbert Preining <norbert@preining.info>2020-06-13 03:02:55 +0000
commit2d0067edb74f15b431d7a1e3a42b4f525986cef0 (patch)
tree06198722777ad0af165eb45b12960c56b226b0cf /graphics/epix/data_bins.h
parentc2fde990c352049f8aa6bc9629fee95bad518cde (diff)
CTAN sync 202006130302
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-/*
- * data_bins.h -- ePiX::data_bins class for histogram data
- *
- * This file is part of ePiX, a C++ library for creating high-quality
- * figures in LaTeX
- *
- * Version 1.1.19
- * Last Change: September 17, 2007
- */
-
-/*
- * Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007
- * Andrew D. Hwang <rot 13 nujnat at zngupf dot ubylpebff dot rqh>
- * Department of Mathematics and Computer Science
- * College of the Holy Cross
- * Worcester, MA, 01610-2395, USA
- */
-
-/*
- * ePiX is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * ePiX is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
- * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
- * License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with ePiX; if not, write to the Free Software Foundation, Inc.,
- * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-/*
- * This file provides the "data_bins" class.
- *
- * An object of type data_bins models a closed interval [lo, hi]
- * divided into subintervals (not necessarily of equal length). Each
- * subinterval is a "d_bin", whose endpoints are "cuts". A data_bins
- * can read and sort numerical data, count how many numbers lie in
- * each bin, and print the result as a bar chart (rectangle height
- * proportional to population), histogram (area proportional to
- * population), or as a spline interpolation.
- *
- * Ideally no data lies outside (lo, hi) or on a cut. Data on an end
- * cut is "out of range", data on an interior cut contributes 1/2 to
- * the population of each adjacent bin. A summary statistic warning is
- * printed if any points are out of range or lie on a cut.
- */
-
-#ifndef EPIX_DATA_BINS
-#define EPIX_DATA_BINS
-
-#include <vector>
-#include <list>
-
-namespace ePiX {
-
- class d_bin;
-
- class data_bins {
- public:
- data_bins(double lo, double hi, unsigned int n=1);
-
- data_bins(const data_bins&);
- data_bins& operator= (const data_bins&);
- ~data_bins();
-
- data_bins& cut(double); // add a cut
- data_bins& read(const std::vector<double>&);
-
- unsigned int pop() const; // current population
-
- // draw rectangles
- void histogram(double scale=1) const; // area prop to pop
- void bar_chart(double scale=1) const; // height prop to pop
- void plot(double scale=1) const; // smooth interpolation
-
- private:
- double m_lo_val;
- double m_hi_val;
-
- unsigned int m_lo_ct; // population smaller than m_lo_val
- unsigned int m_hi_ct; // population larger than m_hi_val
- unsigned int m_pop; // current total population
-
- unsigned int m_cut_hits; // number of data on a cut
- bool m_cuts_locked; // true once we read data
-
- std::list<double> m_cuts;
- std::list<d_bin*> m_bins;
-
- // bookkeeping
- void initialize(); // convert cuts to bins and lock
- void insert(double); // add data point
- }; // end of class data_bins
-
-} // end of namespace
-
-#endif /* EPIX_DATA_BINS */