Mercurial > hg > ltpda

annotate m-toolbox/classes/@data2D/plus.m @ 3:960fe1aa1c10 database-connection-manager

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Add LTPDADatabaseConnectionManager implementation. Java code
author Daniele Nicolodi <nicolodi@science.unitn.it>
date Mon, 05 Dec 2011 16:20:06 +0100
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1 % PLUS implements addition operator for data2D objects.
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2 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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3 %
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4 % DESCRIPTION: PLUS implements addition operator for two data2D objects.
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5 %
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6 % CALL:
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7 % a = d1+d2
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8 % a = plus(d1,d2);
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9 %
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10 %
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11 % <a href="matlab:utils.helper.displayMethodInfo('data2D', 'plus')">Parameters Description</a>
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12 %
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13 % VERSION: $Id: plus.m,v 1.2 2011/04/08 08:56:36 hewitson Exp $
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14 %
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15 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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16
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17 function varargout = plus(varargin)
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18
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19 % get two data objects
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20 d1 = copy(varargin{1}, nargout);
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21 d2 = copy(varargin{2}, nargout);
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22
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23 % check units
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24 d1.yunits.simplify();
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25 d2.yunits.simplify();
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26 d1.xunits.simplify();
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27 d2.xunits.simplify();
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28
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29 if ~isempty(d1.yunits.strs) && ~isempty(d2.yunits.strs) && d1.yunits ~= d2.yunits
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30 error('### When adding two data objects, the yunits must be the same');
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31 end
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32 if ~isempty(d1.xunits.strs) && ~isempty(d2.xunits.strs) && d1.xunits ~= d2.xunits
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33 error('### When adding two data objects, the xunits must be the same');
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34 end
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35
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36 % add the data
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37 dout = applyoperator(d1,d2,'plus');
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38
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39 % handle units: since both are the same, we take the first non-empty unit
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40 if isempty(d1.yunits.strs)
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41 dout.yunits = d2.yunits;
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42 else
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43 dout.yunits = d1.yunits;
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44 end
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45 if isempty(d1.xunits.strs)
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46 dout.xunits = d2.xunits;
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47 else
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48 dout.xunits = d1.xunits;
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49 end
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50
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51 % handle errors
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52 err = @(err1, err2, val1, val2) sqrt(err1 .^2 + err2.^2);
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53 if ~isempty(d1.dy) || ~isempty(d2.dy)
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54 if isempty(d1.dy)
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55 d1.dy = zeros(size(d2.dy));
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56 end
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57 if isempty(d2.dy)
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58 d2.dy = zeros(size(d1.dy));
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59 end
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60 dout.dy = err(d1.dy, d2.dy, d1.y, d2.y);
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61 else
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62 dout.dy = [];
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63 end
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64 if ~isempty(d1.dx) || ~isempty(d2.dx)
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65 if isempty(d1.dx)
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66 d1.dx = zeros(size(d2.dx));
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67 end
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68 if isempty(d2.dx)
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69 d2.dx = zeros(size(d1.dx));
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70 end
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71 dout.dx = err(d1.dx, d2.dx, d1.x, d2.x);
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72 else
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73 dout.dx = [];
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74 end
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75
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76
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77 % Single output
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78 varargout{1} = dout;
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79
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80 end
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81