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comparison m-toolbox/classes/@time/minus.m @ 0:f0afece42f48

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author Daniele Nicolodi <nicolodi@science.unitn.it>
date Wed, 23 Nov 2011 19:22:13 +0100
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-1:000000000000 0:f0afece42f48
1 % MINUS Implements subtraction operator for time objects.
2 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
3 %
4 % DESCRIPTION: Implements subtraction operator for time objects. Numeric and
5 % string operands are transparently handled converting them to time objects.
6 % Vector operands are handled accordingly to MATLAB conventions.
7 %
8 % VERSION: $Id: minus.m,v 1.18 2011/05/05 12:29:34 hewitson Exp $
9 %
10 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
11
12 function t = minus(t1, t2)
13
14 if isnumeric(t1)
15 d1 = t1*1000;
16 elseif ischar(t1)
17 d1 = time(t1).utc_epoch_milli;
18 elseif isa(t1, 'time')
19 d1 = t1.utc_epoch_milli;
20 else
21 error('LTPDA:TypeError', ...
22 '### unsupported operand classes for minus: ''%s'' and ''%s''', ...
23 class(t1), class(t2));
24 end
25
26 if isnumeric(t2)
27 d2 = t2*1000;
28 elseif ischar(t2)
29 d2 = time(t2).utc_epoch_milli;
30 elseif isa(t2, 'time')
31 d2 = t2.utc_epoch_milli;
32 else
33 error('LTPDA:TypeError', ...
34 '### unsupported operand classes for minus: ''%s'' and ''%s''', ...
35 class(t1), class(t2));
36 end
37
38 t = time((d1 - d2)/1000);
39 end