1 | //#--------------------------------------------------------------------------- |
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2 | //# MathUtilities.h: General math operations |
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3 | //#--------------------------------------------------------------------------- |
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4 | //# Copyright (C) 2004 |
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5 | //# ATNF |
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6 | //# |
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7 | //# This program is free software; you can redistribute it and/or modify it |
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8 | //# under the terms of the GNU General Public License as published by the Free |
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9 | //# Software Foundation; either version 2 of the License, or (at your option) |
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10 | //# any later version. |
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11 | //# |
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12 | //# This program is distributed in the hope that it will be useful, but |
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13 | //# WITHOUT ANY WARRANTY; without even the implied warranty of |
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14 | //# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General |
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15 | //# Public License for more details. |
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16 | //# |
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17 | //# You should have received a copy of the GNU General Public License along |
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18 | //# with this program; if not, write to the Free Software Foundation, Inc., |
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19 | //# 675 Massachusetts Ave, Cambridge, MA 02139, USA. |
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20 | //# |
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21 | //# Correspondence concerning this software should be addressed as follows: |
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22 | //# Internet email: Malte.Marquarding@csiro.au |
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23 | //# Postal address: Malte Marquarding, |
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24 | //# Australia Telescope National Facility, |
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25 | //# P.O. Box 76, |
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26 | //# Epping, NSW, 2121, |
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27 | //# AUSTRALIA |
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28 | //# |
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29 | //# $Id: MathUtils.h 1819 2010-08-02 07:28:20Z KanaSugimoto $ |
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30 | //#--------------------------------------------------------------------------- |
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31 | #ifndef MATHUTILS_H |
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32 | #define MATHUTILS_H |
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33 | |
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34 | #include <string> |
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35 | #include <vector> |
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36 | #include <casa/aips.h> |
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37 | #include <casa/Arrays/Vector.h> |
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38 | #include <casa/BasicSL/String.h> |
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39 | #include <casa/Arrays/IPosition.h> |
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40 | |
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41 | namespace mathutil { |
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42 | |
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43 | // Hanning smoothing |
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44 | /** |
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45 | * Hanning smooth a masked vector |
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46 | * @param out the smoothed vector |
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47 | * @param outmask the smoothed mask |
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48 | * @param in the input vector |
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49 | * @param mask the input mask |
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50 | * @param relaxed a weighting scheme |
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51 | * @param ignoreOther drop every second channel (NYI) |
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52 | */ |
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53 | void hanning(casa::Vector<casa::Float>& out, |
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54 | casa::Vector<casa::Bool>& outmask, |
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55 | const casa::Vector<casa::Float>& in, |
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56 | const casa::Vector<casa::Bool>& mask, |
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57 | casa::Bool relaxed=casa::False, |
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58 | casa::Bool ignoreOther=casa::False); |
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59 | |
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60 | /** |
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61 | * Apply a running median to a masked vector. |
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62 | * Edge solution: The first and last hwidth channels will be replicated |
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63 | * from the first/last value from a full window. |
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64 | * @param out the smoothed vector |
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65 | * @param outmask the smoothed mask |
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66 | * @param in the input vector |
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67 | * @param mask the input mask |
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68 | * @param hwidth half-width of the smoothing window |
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69 | */ |
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70 | void runningMedian(casa::Vector<casa::Float>& out, |
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71 | casa::Vector<casa::Bool>& outflag, |
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72 | const casa::Vector<casa::Float>& in, |
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73 | const casa::Vector<casa::Bool>& flag, |
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74 | float hwidth); |
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75 | |
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76 | void polyfit(casa::Vector<casa::Float>& out, |
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77 | casa::Vector<casa::Bool>& outmask, |
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78 | const casa::Vector<casa::Float>& in, |
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79 | const casa::Vector<casa::Bool>& mask, |
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80 | float hwidth, int order); |
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81 | |
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82 | // Generate specified statistic |
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83 | float statistics(const casa::String& which, |
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84 | const casa::MaskedArray<casa::Float>& data); |
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85 | |
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86 | // Return a position of min or max value |
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87 | casa::IPosition minMaxPos(const casa::String& which, |
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88 | const casa::MaskedArray<casa::Float>& data); |
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89 | |
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90 | // Replace masked value by zero |
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91 | void replaceMaskByZero(casa::Vector<casa::Float>& data, |
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92 | const casa::Vector<casa::Bool>& mask); |
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93 | |
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94 | /** |
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95 | * Convert casa implementations to stl |
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96 | * @param in casa string |
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97 | * @return a std vector of std strings |
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98 | */ |
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99 | std::vector<std::string> tovectorstring(const casa::Vector<casa::String>& in); |
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100 | |
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101 | /** |
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102 | * convert stl implementations to casa versions |
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103 | * @param in |
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104 | * @return |
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105 | */ |
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106 | casa::Vector<casa::String> toVectorString(const std::vector<std::string>& in); |
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107 | |
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108 | } |
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109 | |
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110 | #endif |
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