source: trunk/src/MathUtils.cc@ 858

Last change on this file since 858 was 829, checked in by mar637, 19 years ago

asap2 integration

  • Property svn:eol-style set to native
  • Property svn:keywords set to Author Date Id Revision
File size: 3.2 KB
RevLine 
[37]1//#---------------------------------------------------------------------------
2//# MathUtilities.cc: General math operations
3//#---------------------------------------------------------------------------
4//# Copyright (C) 2004
[125]5//# ATNF
[37]6//#
7//# This program is free software; you can redistribute it and/or modify it
8//# under the terms of the GNU General Public License as published by the Free
9//# Software Foundation; either version 2 of the License, or (at your option)
10//# any later version.
11//#
12//# This program is distributed in the hope that it will be useful, but
13//# WITHOUT ANY WARRANTY; without even the implied warranty of
14//# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
15//# Public License for more details.
16//#
17//# You should have received a copy of the GNU General Public License along
18//# with this program; if not, write to the Free Software Foundation, Inc.,
19//# 675 Massachusetts Ave, Cambridge, MA 02139, USA.
20//#
21//# Correspondence concerning this software should be addressed as follows:
22//# Internet email: Malte.Marquarding@csiro.au
23//# Postal address: Malte Marquarding,
24//# Australia Telescope National Facility,
25//# P.O. Box 76,
26//# Epping, NSW, 2121,
27//# AUSTRALIA
28//#
29//# $Id:
30//#---------------------------------------------------------------------------
31
[125]32#include <casa/aips.h>
[176]33#include <casa/Arrays/Vector.h>
[137]34#include <casa/Arrays/MaskedArray.h>
[136]35#include <casa/Arrays/MaskArrMath.h>
[465]36#include <casa/Arrays/VectorSTLIterator.h>
[136]37#include <casa/BasicSL/String.h>
[37]38
[125]39#include "MathUtils.h"
40
41using namespace casa;
42
[829]43float mathutil::statistics(const String& which,
[209]44 const MaskedArray<Float>& data)
[136]45{
46 String str(which);
47 str.upcase();
48 if (str.contains(String("MIN"))) {
[829]49 return min(data);
[136]50 } else if (str.contains(String("MAX"))) {
51 return max(data);
52 } else if (str.contains(String("SUMSQ"))) {
53 return sumsquares(data);
54 } else if (str.contains(String("SUM"))) {
55 return sum(data);
56 } else if (str.contains(String("MEAN"))) {
57 return mean(data);
58 } else if (str.contains(String("VAR"))) {
[829]59 return variance(data);
[136]60 } else if (str.contains(String("STDDEV"))) {
61 return stddev(data);
62 } else if (str.contains(String("AVDEV"))) {
63 return avdev(data);
64 } else if (str.contains(String("RMS"))) {
65 uInt n = data.nelementsValid();
66 return sqrt(sumsquares(data)/n);
67 } else if (str.contains(String("MED"))) {
68 return median(data);
69 }
70}
[176]71
[829]72
[209]73void mathutil::replaceMaskByZero(Vector<Float>& data, const Vector<Bool>& mask)
[176]74{
75 for (uInt i=0; i<data.nelements(); i++) {
76 if (!mask[i]) data[i] = 0.0;
77 }
78}
[382]79
80
[829]81std::vector<std::string> mathutil::tovectorstring(const Vector<String>& in)
[382]82{
[465]83 std::vector<std::string> out;
84 VectorSTLIterator<String> it(in);
85 for (uInt i=0; it != in.end(); ++it,++i) {
86 out.push_back(*it);
87 }
88 return out;
89}
90
[829]91Vector<String> mathutil::toVectorString(const std::vector<std::string>& in)
[465]92{
93 Vector<String> out(in.size());
94 uInt i=0;
95 std::vector<std::string>::const_iterator it;
96 for (it=in.begin();it != in.end();++it,++i) {
97 out[i] = casa::String(*it);
98 }
99 return out;
100}
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