1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
|
//# Copyright (C) 2000,2001
//# Associated Universities, Inc. Washington DC, USA.
//#
//# This library is free software; you can redistribute it and/or modify it
//# under the terms of the GNU Library General Public License as published by
//# the Free Software Foundation; either version 2 of the License, or (at your
//# option) any later version.
//#
//# This library 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 Library General Public
//# License for more details.
//#
//# You should have received a copy of the GNU Library General Public License
//# along with this library; if not, write to the Free Software Foundation,
//# Inc., 675 Massachusetts Ave, Cambridge, MA 02139, USA.
//#
//# Correspondence concerning AIPS++ should be addressed as follows:
//# Internet email: casa-feedback@nrao.edu.
//# Postal address: AIPS++ Project Office
//# National Radio Astronomy Observatory
//# 520 Edgemont Road
//# Charlottesville, VA 22903-2475 USA
//#
#include <casacore/scimath/StatsFramework/StatisticsData.h>
#include <casacore/casa/Exceptions/Error.h>
#include <casacore/casa/BasicMath/Math.h>
#include <algorithm>
namespace casacore {
String StatisticsData::toString(STATS stat) {
switch(stat) {
case MAX:
return "max";
case MEAN:
return "mean";
case MIN:
return "min";
case NPTS:
return "npts";
case RMS:
return "rms";
case STDDEV:
return "stddev";
case SUM:
return "sum";
case SUMSQ:
return "sumsq";
case SUMWEIGHTS:
return "sumOfWeights";
case VARIANCE:
return "variance";
case MEDIAN:
return "median";
case MEDABSDEVMED:
return "median of the absolute devation from the median";
case FIRST_QUARTILE:
return "first quartile";
case THIRD_QUARTILE:
return "third quartile";
case INNER_QUARTILE_RANGE:
return "inner quartile range";
default:
ThrowCc(
"Logic error: Unhandled value in switch statement"
+ String::toString(stat)
);
}
}
std::map<Double, uInt64> StatisticsData::indicesFromFractions(
uInt64 npts, const std::set<Double>& fractions
) {
std::map<Double, uInt64> fractionToIndexMap;
for_each(
fractions.cbegin(), fractions.cend(),
[&fractionToIndexMap, &npts](Double q) {
auto idxWRT1 = q * npts;
auto myfloor = floor(idxWRT1);
if (near(idxWRT1, myfloor)) {
// prevent rounding due to finite machine precision
idxWRT1 = myfloor;
}
fractionToIndexMap[q] = ((uInt64)ceil(idxWRT1) - 1);
});
return fractionToIndexMap;
}
}
|
