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−% RMS Calculate RMS deviation from spectrum
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−%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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−%
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−% DESCRIPTION: RMS Calculate RMS deviation from spectrum
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−%
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−% CALL:        b=rms(a)
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−%
+
−% INPUTS:      a  - input analysis object containing spectrum
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−%
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−% OUTPUTS:     b  - analysis object containing RMS deviation
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−%
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−% <a href="matlab:utils.helper.displayMethodInfo('ao', 'rms')">Parameters Description</a>
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−%
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−% VERSION:     $Id: rms.m,v 1.22 2011/04/08 08:56:11 hewitson Exp $
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−%
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−% NOTE:        Taken from code by: 1998.05.25      Masaki Ando
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−%
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−%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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−
+
−function varargout = rms(varargin)
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−
+
−  % Check if this is a call for parameters
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−  if utils.helper.isinfocall(varargin{:})
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−    varargout{1} = getInfo(varargin{3});
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−    return
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−  end
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−
+
−  import utils.const.*
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−  utils.helper.msg(msg.PROC3, 'running %s/%s', mfilename('class'), mfilename);
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−  
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−  % Collect input variable names
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−  in_names = cell(size(varargin));
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−  for ii = 1:nargin,in_names{ii} = inputname(ii);end
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−
+
−  % Collect all AOs and plists
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−  [as, ao_invars] = utils.helper.collect_objects(varargin(:), 'ao', in_names);
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−
+
−  % Decide on a deep copy or a modify
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−  bs = copy(as, nargout);
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−
+
−  % Loop over input AOs
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−  for j=1:numel(bs)
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−    % check input data
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−    if isa(bs(j).data, 'fsdata')
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−      % get data
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−      f = bs(j).data.getX;
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−      spe = [f bs(j).data.getY];
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−      % start and end frequencies
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−      s = f(1);
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−      e = f(end);
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−      % compute integrated rms
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−      l1=spe(:,1)>=s;
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−      sp=spe(l1,:);
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−      l2=sp(:,1)<=e;
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−      sp=sp(l2,:);
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−      si=size(sp);
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−      li=si(1,1);
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−      freq=sp(:,1);
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−      sp2=sp(:,2).^2;
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−      ms=sp2;
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−      for i= li-1 :-1: 1
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−        ms(i)=ms(i+1)+(sp2(i+1)+sp2(i))*(freq(i+1)-freq(i))/2;
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−      end
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−      % set data
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−      bs(j).data.setXY(freq, sqrt(ms));
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−      % set name
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−      bs(j).name = sprintf('RMS(%s)', ao_invars{j});
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−      % Add history
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−      bs(j).addHistory(getInfo('None'), plist, ao_invars(j), bs(j).hist);
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−      % clear errors
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−      bs(j).clearErrors;
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−    else
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−      warning('!!! Skipping AO %s - it''s not an frequency series.', ao_invars{j});
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−    end
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−  end
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−
+
−  % Set output
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−  if nargout == numel(bs)
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−    % List of outputs
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−    for ii = 1:numel(bs)
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−      varargout{ii} = bs(ii);
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−    end
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−  else
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−    % Single output
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−    varargout{1} = bs;
+
−  end
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−end
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−
+
−%--------------------------------------------------------------------------
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−% Get Info Object
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−%--------------------------------------------------------------------------
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−function ii = getInfo(varargin)
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−  if nargin == 1 && strcmpi(varargin{1}, 'None')
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−    sets = {};
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−    pl   = [];
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−  else
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−    sets = {'Default'};
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−    pl   = getDefaultPlist;
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−  end
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−  % Build info object
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−  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);
+
−end
+
−
+
−%--------------------------------------------------------------------------
+
−% Get Default Plist
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−%--------------------------------------------------------------------------
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−function plout = getDefaultPlist()
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−  persistent pl;  
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−  if exist('pl', 'var')==0 || isempty(pl)
+
−    pl = buildplist();
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−  end
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−  plout = pl;  
+
−end
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−
+
−function pl = buildplist()
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−  pl = plist.EMPTY_PLIST;
+
−end
+
−% END
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−