195 |
27 Oct 04 |
jari |
// $Id$ |
195 |
27 Oct 04 |
jari |
2 |
|
675 |
10 Oct 06 |
jari |
3 |
/* |
2119 |
12 Dec 09 |
peter |
Copyright (C) 2004 Jari Häkkinen |
831 |
27 Mar 07 |
peter |
Copyright (C) 2005 Peter Johansson |
2119 |
12 Dec 09 |
peter |
Copyright (C) 2006 Jari Häkkinen |
4359 |
23 Aug 23 |
peter |
Copyright (C) 2007 Peter Johansson |
4359 |
23 Aug 23 |
peter |
Copyright (C) 2008 Jari Häkkinen, Peter Johansson |
4359 |
23 Aug 23 |
peter |
Copyright (C) 2009, 2010, 2011, 2012 Peter Johansson |
195 |
27 Oct 04 |
jari |
10 |
|
1437 |
25 Aug 08 |
peter |
This file is part of the yat library, http://dev.thep.lu.se/yat |
675 |
10 Oct 06 |
jari |
12 |
|
675 |
10 Oct 06 |
jari |
The yat library is free software; you can redistribute it and/or |
675 |
10 Oct 06 |
jari |
modify it under the terms of the GNU General Public License as |
1486 |
09 Sep 08 |
jari |
published by the Free Software Foundation; either version 3 of the |
675 |
10 Oct 06 |
jari |
License, or (at your option) any later version. |
675 |
10 Oct 06 |
jari |
17 |
|
675 |
10 Oct 06 |
jari |
The yat library is distributed in the hope that it will be useful, |
675 |
10 Oct 06 |
jari |
but WITHOUT ANY WARRANTY; without even the implied warranty of |
675 |
10 Oct 06 |
jari |
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
675 |
10 Oct 06 |
jari |
General Public License for more details. |
675 |
10 Oct 06 |
jari |
22 |
|
675 |
10 Oct 06 |
jari |
You should have received a copy of the GNU General Public License |
1487 |
10 Sep 08 |
jari |
along with yat. If not, see <http://www.gnu.org/licenses/>. |
675 |
10 Oct 06 |
jari |
25 |
*/ |
675 |
10 Oct 06 |
jari |
26 |
|
2881 |
18 Nov 12 |
peter |
27 |
#include <config.h> |
2881 |
18 Nov 12 |
peter |
28 |
|
680 |
11 Oct 06 |
jari |
29 |
#include "Histogram.h" |
675 |
10 Oct 06 |
jari |
30 |
|
2333 |
15 Oct 10 |
peter |
31 |
#include <yat/utility/utility.h> |
2333 |
15 Oct 10 |
peter |
32 |
|
2032 |
19 Aug 09 |
peter |
33 |
#include <algorithm> |
2032 |
19 Aug 09 |
peter |
34 |
#include <cassert> |
199 |
27 Oct 04 |
jari |
35 |
#include <cmath> |
2032 |
19 Aug 09 |
peter |
36 |
#include <functional> |
2333 |
15 Oct 10 |
peter |
37 |
#include <istream> |
2032 |
19 Aug 09 |
peter |
38 |
#include <ostream> |
195 |
27 Oct 04 |
jari |
39 |
|
195 |
27 Oct 04 |
jari |
40 |
namespace theplu { |
680 |
11 Oct 06 |
jari |
41 |
namespace yat { |
298 |
29 Apr 05 |
peter |
42 |
namespace statistics { |
195 |
27 Oct 04 |
jari |
43 |
|
195 |
27 Oct 04 |
jari |
44 |
|
718 |
26 Dec 06 |
jari |
45 |
Histogram::Histogram(void) |
718 |
26 Dec 06 |
jari |
46 |
: xmax_(0), xmin_(0), sum_all_(), sum_histogram_() |
718 |
26 Dec 06 |
jari |
47 |
{ |
718 |
26 Dec 06 |
jari |
48 |
} |
195 |
27 Oct 04 |
jari |
49 |
|
195 |
27 Oct 04 |
jari |
50 |
|
2333 |
15 Oct 10 |
peter |
51 |
Histogram::Histogram(std::istream& is) |
2333 |
15 Oct 10 |
peter |
52 |
{ |
2333 |
15 Oct 10 |
peter |
53 |
std::string line; |
2333 |
15 Oct 10 |
peter |
54 |
getline(is, line, ':'); |
2333 |
15 Oct 10 |
peter |
55 |
getline(is, line, '\n'); |
2333 |
15 Oct 10 |
peter |
56 |
xmin_ = utility::convert<double>(line); |
2333 |
15 Oct 10 |
peter |
57 |
getline(is, line, ':'); |
2333 |
15 Oct 10 |
peter |
58 |
getline(is, line, '\n'); |
2333 |
15 Oct 10 |
peter |
59 |
xmax_ = utility::convert<double>(line); |
2333 |
15 Oct 10 |
peter |
60 |
getline(is, line, ':'); |
2333 |
15 Oct 10 |
peter |
61 |
getline(is, line, '\n'); |
2333 |
15 Oct 10 |
peter |
62 |
size_t n = utility::convert<size_t>(line); |
2333 |
15 Oct 10 |
peter |
63 |
histogram_.resize(n); |
2333 |
15 Oct 10 |
peter |
64 |
getline(is, line, '\n'); |
2333 |
15 Oct 10 |
peter |
65 |
getline(is, line, ':'); |
2333 |
15 Oct 10 |
peter |
66 |
getline(is, line, '\n'); |
2333 |
15 Oct 10 |
peter |
67 |
double total = utility::convert<double>(line); |
2333 |
15 Oct 10 |
peter |
68 |
getline(is, line, '\n'); |
2333 |
15 Oct 10 |
peter |
69 |
getline(is, line, '\n'); |
2333 |
15 Oct 10 |
peter |
70 |
std::vector<std::vector<double> > data; |
2411 |
13 Jan 11 |
peter |
71 |
utility::load(is, data, '\0', '\n'); |
2333 |
15 Oct 10 |
peter |
72 |
for (size_t i=0; i<histogram_.size(); ++i) { |
2333 |
15 Oct 10 |
peter |
73 |
assert(data[i].size()==2); |
2333 |
15 Oct 10 |
peter |
74 |
add(data[i][0], data[i][1]); |
2333 |
15 Oct 10 |
peter |
75 |
} |
2333 |
15 Oct 10 |
peter |
76 |
add(xmax_, total - averager_all().sum_w()); |
2333 |
15 Oct 10 |
peter |
77 |
} |
2333 |
15 Oct 10 |
peter |
78 |
|
2333 |
15 Oct 10 |
peter |
79 |
|
718 |
26 Dec 06 |
jari |
80 |
Histogram::Histogram(const Histogram& b) |
718 |
26 Dec 06 |
jari |
81 |
{ |
718 |
26 Dec 06 |
jari |
82 |
*this=b; |
718 |
26 Dec 06 |
jari |
83 |
} |
195 |
27 Oct 04 |
jari |
84 |
|
195 |
27 Oct 04 |
jari |
85 |
|
718 |
26 Dec 06 |
jari |
86 |
Histogram::Histogram(const double min, const double max, const size_t n) |
718 |
26 Dec 06 |
jari |
87 |
: histogram_(std::vector<double>(n,0.0)), |
718 |
26 Dec 06 |
jari |
88 |
xmax_(max), xmin_(min), |
718 |
26 Dec 06 |
jari |
89 |
sum_all_(), sum_histogram_() |
718 |
26 Dec 06 |
jari |
90 |
{ |
718 |
26 Dec 06 |
jari |
91 |
} |
195 |
27 Oct 04 |
jari |
92 |
|
195 |
27 Oct 04 |
jari |
93 |
|
718 |
26 Dec 06 |
jari |
94 |
Histogram::~Histogram(void) |
718 |
26 Dec 06 |
jari |
95 |
{ |
718 |
26 Dec 06 |
jari |
96 |
} |
195 |
27 Oct 04 |
jari |
97 |
|
195 |
27 Oct 04 |
jari |
98 |
|
718 |
26 Dec 06 |
jari |
99 |
int Histogram::add(const double x, const double w) |
718 |
26 Dec 06 |
jari |
100 |
{ |
718 |
26 Dec 06 |
jari |
101 |
sum_all_.add(x,w); |
718 |
26 Dec 06 |
jari |
102 |
if (x<xmin_) |
718 |
26 Dec 06 |
jari |
103 |
return -1; |
718 |
26 Dec 06 |
jari |
104 |
else if (x>=xmax_) |
718 |
26 Dec 06 |
jari |
105 |
return 1; |
195 |
27 Oct 04 |
jari |
106 |
|
718 |
26 Dec 06 |
jari |
107 |
sum_histogram_.add(x,w); |
718 |
26 Dec 06 |
jari |
108 |
histogram_[bin(x)] += w; |
718 |
26 Dec 06 |
jari |
109 |
return 0; |
718 |
26 Dec 06 |
jari |
110 |
} |
195 |
27 Oct 04 |
jari |
111 |
|
195 |
27 Oct 04 |
jari |
112 |
|
1203 |
05 Mar 08 |
peter |
113 |
const AveragerWeighted& Histogram::averager_all(void) const |
718 |
26 Dec 06 |
jari |
114 |
{ |
718 |
26 Dec 06 |
jari |
115 |
return sum_all_; |
718 |
26 Dec 06 |
jari |
116 |
} |
195 |
27 Oct 04 |
jari |
117 |
|
195 |
27 Oct 04 |
jari |
118 |
|
1203 |
05 Mar 08 |
peter |
119 |
const AveragerWeighted& Histogram::averager_histogram(void) const |
718 |
26 Dec 06 |
jari |
120 |
{ |
718 |
26 Dec 06 |
jari |
121 |
return sum_histogram_; |
718 |
26 Dec 06 |
jari |
122 |
} |
195 |
27 Oct 04 |
jari |
123 |
|
195 |
27 Oct 04 |
jari |
124 |
|
718 |
26 Dec 06 |
jari |
125 |
size_t Histogram::bin(double d) |
718 |
26 Dec 06 |
jari |
126 |
{ |
718 |
26 Dec 06 |
jari |
127 |
return (((d<xmin_) || (d>xmax_)) ? 0 : |
718 |
26 Dec 06 |
jari |
128 |
static_cast<size_t>(floor((d-xmin_)/spacing() ))); |
718 |
26 Dec 06 |
jari |
129 |
} |
372 |
05 Aug 05 |
peter |
130 |
|
195 |
27 Oct 04 |
jari |
131 |
|
718 |
26 Dec 06 |
jari |
132 |
size_t Histogram::nof_bins(void) const |
718 |
26 Dec 06 |
jari |
133 |
{ |
718 |
26 Dec 06 |
jari |
134 |
return histogram_.size(); |
718 |
26 Dec 06 |
jari |
135 |
} |
195 |
27 Oct 04 |
jari |
136 |
|
195 |
27 Oct 04 |
jari |
137 |
|
718 |
26 Dec 06 |
jari |
138 |
void Histogram::normalize(bool choice) |
718 |
26 Dec 06 |
jari |
139 |
{ |
4200 |
19 Aug 22 |
peter |
140 |
if (choice) |
2038 |
25 Aug 09 |
peter |
141 |
rescale(1.0/sum_all_.sum_w()); |
718 |
26 Dec 06 |
jari |
142 |
else |
2038 |
25 Aug 09 |
peter |
143 |
rescale(1.0/sum_all_.sum_w()/spacing()); |
718 |
26 Dec 06 |
jari |
144 |
} |
195 |
27 Oct 04 |
jari |
145 |
|
195 |
27 Oct 04 |
jari |
146 |
|
718 |
26 Dec 06 |
jari |
147 |
double Histogram::observation_value(const size_t k) const |
718 |
26 Dec 06 |
jari |
148 |
{ |
718 |
26 Dec 06 |
jari |
149 |
return xmin_+spacing()*(k+0.5); |
718 |
26 Dec 06 |
jari |
150 |
} |
195 |
27 Oct 04 |
jari |
151 |
|
195 |
27 Oct 04 |
jari |
152 |
|
2038 |
25 Aug 09 |
peter |
153 |
void Histogram::rescale(double factor) |
2038 |
25 Aug 09 |
peter |
154 |
{ |
2038 |
25 Aug 09 |
peter |
155 |
for (size_t i=0; i<histogram_.size(); i++) |
2038 |
25 Aug 09 |
peter |
156 |
histogram_[i]*=factor; |
2038 |
25 Aug 09 |
peter |
157 |
} |
2038 |
25 Aug 09 |
peter |
158 |
|
2038 |
25 Aug 09 |
peter |
159 |
|
718 |
26 Dec 06 |
jari |
160 |
void Histogram::reset(void) |
718 |
26 Dec 06 |
jari |
161 |
{ |
1271 |
09 Apr 08 |
peter |
162 |
for (size_t i=0; i<histogram_.size(); i++) |
718 |
26 Dec 06 |
jari |
163 |
histogram_[i]=0; |
718 |
26 Dec 06 |
jari |
164 |
sum_all_.reset(); |
718 |
26 Dec 06 |
jari |
165 |
sum_histogram_.reset(); |
718 |
26 Dec 06 |
jari |
166 |
} |
195 |
27 Oct 04 |
jari |
167 |
|
195 |
27 Oct 04 |
jari |
168 |
|
718 |
26 Dec 06 |
jari |
169 |
double Histogram::spacing(void) const |
718 |
26 Dec 06 |
jari |
170 |
{ |
718 |
26 Dec 06 |
jari |
171 |
return (xmax_-xmin_)/nof_bins(); |
718 |
26 Dec 06 |
jari |
172 |
} |
195 |
27 Oct 04 |
jari |
173 |
|
195 |
27 Oct 04 |
jari |
174 |
|
718 |
26 Dec 06 |
jari |
175 |
double Histogram::xmax(void) const |
718 |
26 Dec 06 |
jari |
176 |
{ |
718 |
26 Dec 06 |
jari |
177 |
return xmax_; |
718 |
26 Dec 06 |
jari |
178 |
} |
718 |
26 Dec 06 |
jari |
179 |
|
718 |
26 Dec 06 |
jari |
180 |
|
718 |
26 Dec 06 |
jari |
181 |
double Histogram::xmin(void) const |
718 |
26 Dec 06 |
jari |
182 |
{ |
718 |
26 Dec 06 |
jari |
183 |
return xmin_; |
718 |
26 Dec 06 |
jari |
184 |
} |
718 |
26 Dec 06 |
jari |
185 |
|
718 |
26 Dec 06 |
jari |
186 |
|
718 |
26 Dec 06 |
jari |
187 |
double Histogram::operator[](size_t k) const |
718 |
26 Dec 06 |
jari |
188 |
{ |
718 |
26 Dec 06 |
jari |
189 |
return histogram_[k]; |
718 |
26 Dec 06 |
jari |
190 |
} |
718 |
26 Dec 06 |
jari |
191 |
|
718 |
26 Dec 06 |
jari |
192 |
|
718 |
26 Dec 06 |
jari |
193 |
const Histogram& Histogram::operator=(const Histogram& b) |
718 |
26 Dec 06 |
jari |
194 |
{ |
718 |
26 Dec 06 |
jari |
195 |
if (this==&b) |
718 |
26 Dec 06 |
jari |
196 |
return *this; |
718 |
26 Dec 06 |
jari |
197 |
histogram_=b.histogram_; |
718 |
26 Dec 06 |
jari |
198 |
xmax_=b.xmax_; |
718 |
26 Dec 06 |
jari |
199 |
xmin_=b.xmin_; |
718 |
26 Dec 06 |
jari |
200 |
sum_all_=b.sum_all_; |
718 |
26 Dec 06 |
jari |
201 |
sum_histogram_=b.sum_histogram_; |
718 |
26 Dec 06 |
jari |
202 |
return *this; |
718 |
26 Dec 06 |
jari |
203 |
} |
718 |
26 Dec 06 |
jari |
204 |
|
718 |
26 Dec 06 |
jari |
205 |
|
2032 |
19 Aug 09 |
peter |
206 |
const Histogram& Histogram::operator+=(const Histogram& rhs) |
2032 |
19 Aug 09 |
peter |
207 |
{ |
2032 |
19 Aug 09 |
peter |
208 |
assert(histogram_.size()==rhs.histogram_.size()); |
2032 |
19 Aug 09 |
peter |
209 |
std::transform(histogram_.begin(), histogram_.end(), |
2032 |
19 Aug 09 |
peter |
210 |
rhs.histogram_.begin(), histogram_.begin(), |
2032 |
19 Aug 09 |
peter |
211 |
std::plus<double>()); |
2034 |
20 Aug 09 |
peter |
212 |
assert(xmax_==rhs.xmax_); |
2034 |
20 Aug 09 |
peter |
213 |
assert(xmin_==rhs.xmin_); |
2032 |
19 Aug 09 |
peter |
214 |
sum_all_ += rhs.sum_all_; |
2032 |
19 Aug 09 |
peter |
215 |
sum_histogram_ += rhs.sum_histogram_; |
2032 |
19 Aug 09 |
peter |
216 |
return *this; |
2032 |
19 Aug 09 |
peter |
217 |
} |
2032 |
19 Aug 09 |
peter |
218 |
|
2032 |
19 Aug 09 |
peter |
219 |
|
718 |
26 Dec 06 |
jari |
220 |
std::ostream& operator<<(std::ostream& s,const Histogram& histogram) |
718 |
26 Dec 06 |
jari |
221 |
{ |
718 |
26 Dec 06 |
jari |
222 |
s << "# histogram min : " << histogram.xmin() << '\n'; |
718 |
26 Dec 06 |
jari |
223 |
s << "# histogram max : " << histogram.xmax() << '\n'; |
718 |
26 Dec 06 |
jari |
224 |
s << "# number of bins: " << histogram.nof_bins() << '\n'; |
4200 |
19 Aug 22 |
peter |
225 |
s << "# nof points in histogram : " |
718 |
26 Dec 06 |
jari |
226 |
<< histogram.averager_histogram().sum_w() << '\n'; |
4200 |
19 Aug 22 |
peter |
227 |
s << "# nof points in total: " |
718 |
26 Dec 06 |
jari |
228 |
<< histogram.averager_all().sum_w() << '\n'; |
718 |
26 Dec 06 |
jari |
229 |
s << "# column 1: center of observation bin\n" |
718 |
26 Dec 06 |
jari |
230 |
<< "# column 2: frequency\n"; |
718 |
26 Dec 06 |
jari |
231 |
|
1271 |
09 Apr 08 |
peter |
232 |
for (size_t i=0; i<histogram.nof_bins(); i++) { |
718 |
26 Dec 06 |
jari |
233 |
s.width(12); |
718 |
26 Dec 06 |
jari |
234 |
s << histogram.observation_value(i); |
718 |
26 Dec 06 |
jari |
235 |
s.width(12); |
718 |
26 Dec 06 |
jari |
236 |
s << histogram[i] << '\n'; |
718 |
26 Dec 06 |
jari |
237 |
} |
718 |
26 Dec 06 |
jari |
238 |
|
718 |
26 Dec 06 |
jari |
239 |
return s; |
718 |
26 Dec 06 |
jari |
240 |
} |
718 |
26 Dec 06 |
jari |
241 |
|
680 |
11 Oct 06 |
jari |
242 |
}}} // of namespace statistics, yat, and theplu |