Mercurial > hg > ltpda
comparison m-toolbox/classes/@cdata/times.m @ 0:f0afece42f48
Import.
| author | Daniele Nicolodi <nicolodi@science.unitn.it> |
|---|---|
| date | Wed, 23 Nov 2011 19:22:13 +0100 |
| parents | |
| children |
comparison
equal
deleted
inserted
replaced
| -1:000000000000 | 0:f0afece42f48 |
|---|---|
| 1 % TIMES implements element multiplication for cdata objects. | |
| 2 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% | |
| 3 % | |
| 4 % DESCRIPTION: TIMES implements element multiplication for two cdata objects. | |
| 5 % | |
| 6 % CALL: | |
| 7 % a = d1.*d2 | |
| 8 % a = times(d1,d2); | |
| 9 % | |
| 10 % | |
| 11 % <a href="matlab:utils.helper.displayMethodInfo('cdata', 'times')">Parameters Description</a> | |
| 12 % | |
| 13 % VERSION: $Id: times.m,v 1.2 2011/04/08 08:56:34 hewitson Exp $ | |
| 14 % | |
| 15 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% | |
| 16 | |
| 17 function varargout = times(varargin) | |
| 18 | |
| 19 % get two data objects | |
| 20 d1 = copy(varargin{1}, nargout); | |
| 21 d2 = copy(varargin{2}, nargout); | |
| 22 | |
| 23 % check units | |
| 24 d1.yunits.simplify(); | |
| 25 d2.yunits.simplify(); | |
| 26 | |
| 27 % add the data | |
| 28 dout = applyoperator(d1,d2,'times'); | |
| 29 | |
| 30 % handle units: multiply the units | |
| 31 dout.yunits = d1.yunits.*d2.yunits; | |
| 32 | |
| 33 % handle errors | |
| 34 err = @(err1, err2, val1, val2) sqrt( (err1./val1).^2 + (err2./val2).^2 ) .* abs(val1.*val2); | |
| 35 if ~isempty(d1.dy) || ~isempty(d2.dy) | |
| 36 if isempty(d1.dy) | |
| 37 d1.dy = zeros(size(d2.dy)); | |
| 38 end | |
| 39 if isempty(d2.dy) | |
| 40 d2.dy = zeros(size(d1.dy)); | |
| 41 end | |
| 42 dout.dy = err(d1.dy, d2.dy, d1.y, d2.y); | |
| 43 else | |
| 44 dout.dy = []; | |
| 45 end | |
| 46 | |
| 47 % Single output | |
| 48 varargout{1} = dout; | |
| 49 | |
| 50 end | |
| 51 |