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annotate m-toolbox/classes/@time/minus.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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f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
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1 % MINUS Implements subtraction operator for time objects.
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2 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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3 %
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4 % DESCRIPTION: Implements subtraction operator for time objects. Numeric and
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5 % string operands are transparently handled converting them to time objects.
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6 % Vector operands are handled accordingly to MATLAB conventions.
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7 %
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8 % VERSION: $Id: minus.m,v 1.18 2011/05/05 12:29:34 hewitson Exp $
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9 %
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10 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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11
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Daniele Nicolodi <nicolodi@science.unitn.it>
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12 function t = minus(t1, t2)
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13
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14 if isnumeric(t1)
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15 d1 = t1*1000;
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16 elseif ischar(t1)
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Daniele Nicolodi <nicolodi@science.unitn.it>
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17 d1 = time(t1).utc_epoch_milli;
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18 elseif isa(t1, 'time')
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19 d1 = t1.utc_epoch_milli;
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20 else
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Daniele Nicolodi <nicolodi@science.unitn.it>
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21 error('LTPDA:TypeError', ...
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Daniele Nicolodi <nicolodi@science.unitn.it>
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22 '### unsupported operand classes for minus: ''%s'' and ''%s''', ...
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Daniele Nicolodi <nicolodi@science.unitn.it>
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23 class(t1), class(t2));
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24 end
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25
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26 if isnumeric(t2)
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27 d2 = t2*1000;
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28 elseif ischar(t2)
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29 d2 = time(t2).utc_epoch_milli;
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30 elseif isa(t2, 'time')
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31 d2 = t2.utc_epoch_milli;
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32 else
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33 error('LTPDA:TypeError', ...
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34 '### unsupported operand classes for minus: ''%s'' and ''%s''', ...
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Daniele Nicolodi <nicolodi@science.unitn.it>
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35 class(t1), class(t2));
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36 end
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37
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38 t = time((d1 - d2)/1000);
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39 end