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Update ltpda_uo.update
author | Daniele Nicolodi <nicolodi@science.unitn.it> |
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date | Mon, 05 Dec 2011 16:20:06 +0100 |
parents | f0afece42f48 |
children |
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% COV estimate covariance of data streams. %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % DESCRIPTION: COV estimate covariance of data streams. % % CALL: c = cov(a,b, pl) % % INPUTS: pl - a parameter list % a,b - input analysis object % % OUTPUTS: c - output analysis object containing the covariance matrix. % % <a href="matlab:utils.helper.displayMethodInfo('ao', 'cov')">Parameters Description</a> % % VERSION: $Id: cov.m,v 1.18 2011/04/08 08:56:12 hewitson Exp $ % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% function varargout = cov(varargin) % Check if this is a call for parameters if utils.helper.isinfocall(varargin{:}) varargout{1} = getInfo(varargin{3}); return end import utils.const.* utils.helper.msg(msg.PROC3, 'running %s/%s', mfilename('class'), mfilename); % Collect input variable names in_names = cell(size(varargin)); for ii = 1:nargin,in_names{ii} = inputname(ii);end % Collect all AOs and plists [as, ao_invars] = utils.helper.collect_objects(varargin(:), 'ao', in_names); if nargout == 0 error('### cov cannot be used as a modifier. Please give an output variable.'); end if numel(as) < 2 error('### cov requires at least two input AOs to work.'); end % Convolute the data smat = []; inunits = unit; name = ''; desc = ''; for jj=1:numel(as) smat = [smat as(jj).data.getY]; inunits = inunits .* as(jj).data.yunits; name = strcat(name, [',' ao_invars{jj}]); desc = strcat(desc, [' ' as(jj).description]); end desc = strtrim(desc); plotinfo = [as(:).plotinfo]; if ~isempty(plotinfo) plotinfo = combine(plotinfo); end bs = ao(cdata(cov(smat))); bs.name = sprintf('cov(%s)', name(2:end)); bs.description = desc; bs.plotinfo = plotinfo; bs.data.setYunits(inunits); bs.addHistory(getInfo('None'), getDefaultPlist, ao_invars, [as(:).hist]); % Set output if nargout == numel(bs) % List of outputs for ii = 1:numel(bs) varargout{ii} = bs(ii); end else % Single output varargout{1} = bs; end end %-------------------------------------------------------------------------- % Get Info Object %-------------------------------------------------------------------------- function ii = getInfo(varargin) if nargin == 1 && strcmpi(varargin{1}, 'None') sets = {}; pls = []; else sets = {'Default'}; pls = getDefaultPlist; end % Build info object ii = minfo(mfilename, 'ao', 'ltpda', utils.const.categories.sigproc, '$Id: cov.m,v 1.18 2011/04/08 08:56:12 hewitson Exp $', sets, pls); ii.setModifier(false); ii.setArgsmin(2); end %-------------------------------------------------------------------------- % Get Default Plist %-------------------------------------------------------------------------- function plout = getDefaultPlist() persistent pl; if exist('pl', 'var')==0 || isempty(pl) pl = buildplist(); end plout = pl; end function pl_default = buildplist() pl_default = plist.EMPTY_PLIST; end