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annotate m-toolbox/classes/@ao/rms.m @ 0:f0afece42f48

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Import.
author Daniele Nicolodi <nicolodi@science.unitn.it>
date Wed, 23 Nov 2011 19:22:13 +0100
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Daniele Nicolodi <nicolodi@science.unitn.it>
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1 % RMS Calculate RMS deviation from spectrum
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Daniele Nicolodi <nicolodi@science.unitn.it>
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2 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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3 %
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Daniele Nicolodi <nicolodi@science.unitn.it>
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4 % DESCRIPTION: RMS Calculate RMS deviation from spectrum
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5 %
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Daniele Nicolodi <nicolodi@science.unitn.it>
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6 % CALL: b=rms(a)
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7 %
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Daniele Nicolodi <nicolodi@science.unitn.it>
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8 % INPUTS: a - input analysis object containing spectrum
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9 %
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10 % OUTPUTS: b - analysis object containing RMS deviation
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11 %
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12 % <a href="matlab:utils.helper.displayMethodInfo('ao', 'rms')">Parameters Description</a>
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13 %
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14 % VERSION: $Id: rms.m,v 1.22 2011/04/08 08:56:11 hewitson Exp $
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15 %
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16 % NOTE: Taken from code by: 1998.05.25 Masaki Ando
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17 %
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18 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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19
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20 function varargout = rms(varargin)
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21
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Daniele Nicolodi <nicolodi@science.unitn.it>
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22 % Check if this is a call for parameters
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Daniele Nicolodi <nicolodi@science.unitn.it>
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23 if utils.helper.isinfocall(varargin{:})
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24 varargout{1} = getInfo(varargin{3});
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25 return
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26 end
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27
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28 import utils.const.*
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29 utils.helper.msg(msg.PROC3, 'running %s/%s', mfilename('class'), mfilename);
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30
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31 % Collect input variable names
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32 in_names = cell(size(varargin));
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Daniele Nicolodi <nicolodi@science.unitn.it>
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33 for ii = 1:nargin,in_names{ii} = inputname(ii);end
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34
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Daniele Nicolodi <nicolodi@science.unitn.it>
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35 % Collect all AOs and plists
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36 [as, ao_invars] = utils.helper.collect_objects(varargin(:), 'ao', in_names);
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37
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Daniele Nicolodi <nicolodi@science.unitn.it>
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38 % Decide on a deep copy or a modify
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39 bs = copy(as, nargout);
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40
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Daniele Nicolodi <nicolodi@science.unitn.it>
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41 % Loop over input AOs
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Daniele Nicolodi <nicolodi@science.unitn.it>
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42 for j=1:numel(bs)
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Daniele Nicolodi <nicolodi@science.unitn.it>
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43 % check input data
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44 if isa(bs(j).data, 'fsdata')
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45 % get data
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46 f = bs(j).data.getX;
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47 spe = [f bs(j).data.getY];
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Daniele Nicolodi <nicolodi@science.unitn.it>
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48 % start and end frequencies
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Daniele Nicolodi <nicolodi@science.unitn.it>
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49 s = f(1);
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Daniele Nicolodi <nicolodi@science.unitn.it>
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50 e = f(end);
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51 % compute integrated rms
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52 l1=spe(:,1)>=s;
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53 sp=spe(l1,:);
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54 l2=sp(:,1)<=e;
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55 sp=sp(l2,:);
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56 si=size(sp);
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Daniele Nicolodi <nicolodi@science.unitn.it>
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57 li=si(1,1);
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58 freq=sp(:,1);
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59 sp2=sp(:,2).^2;
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60 ms=sp2;
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61 for i= li-1 :-1: 1
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62 ms(i)=ms(i+1)+(sp2(i+1)+sp2(i))*(freq(i+1)-freq(i))/2;
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63 end
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64 % set data
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65 bs(j).data.setXY(freq, sqrt(ms));
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66 % set name
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67 bs(j).name = sprintf('RMS(%s)', ao_invars{j});
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68 % Add history
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69 bs(j).addHistory(getInfo('None'), plist, ao_invars(j), bs(j).hist);
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70 % clear errors
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71 bs(j).clearErrors;
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72 else
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73 warning('!!! Skipping AO %s - it''s not an frequency series.', ao_invars{j});
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74 end
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75 end
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76
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Daniele Nicolodi <nicolodi@science.unitn.it>
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77 % Set output
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Daniele Nicolodi <nicolodi@science.unitn.it>
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78 if nargout == numel(bs)
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79 % List of outputs
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80 for ii = 1:numel(bs)
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81 varargout{ii} = bs(ii);
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82 end
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83 else
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84 % Single output
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85 varargout{1} = bs;
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86 end
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87 end
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88
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89 %--------------------------------------------------------------------------
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90 % Get Info Object
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91 %--------------------------------------------------------------------------
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92 function ii = getInfo(varargin)
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93 if nargin == 1 && strcmpi(varargin{1}, 'None')
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94 sets = {};
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95 pl = [];
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96 else
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97 sets = {'Default'};
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98 pl = getDefaultPlist;
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99 end
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100 % Build info object
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101 ii = minfo(mfilename, 'ao', 'ltpda', utils.const.categories.sigproc, '$Id: rms.m,v 1.22 2011/04/08 08:56:11 hewitson Exp $', sets, pl);
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102 end
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103
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104 %--------------------------------------------------------------------------
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105 % Get Default Plist
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106 %--------------------------------------------------------------------------
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107 function plout = getDefaultPlist()
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108 persistent pl;
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109 if exist('pl', 'var')==0 || isempty(pl)
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110 pl = buildplist();
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111 end
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112 plout = pl;
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113 end
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114
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115 function pl = buildplist()
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116 pl = plist.EMPTY_PLIST;
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117 end
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118 % END
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119