Mercurial > hg > ltpda
comparison m-toolbox/classes/@tsdata/getX.m @ 0:f0afece42f48
Import.
| author | Daniele Nicolodi <nicolodi@science.unitn.it> |
|---|---|
| date | Wed, 23 Nov 2011 19:22:13 +0100 |
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| children |
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| -1:000000000000 | 0:f0afece42f48 |
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| 1 % GETX Get the property 'x'. | |
| 2 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% | |
| 3 % | |
| 4 % DESCRIPTION: Get the property 'x'. | |
| 5 % | |
| 6 % CALL: val = obj.getX(); | |
| 7 % val = obj.getX(idx); | |
| 8 % val = obj.getX(1:10); | |
| 9 % | |
| 10 % INPUTS: obj - must be a single tsdata object. | |
| 11 % idx - index of the data samples | |
| 12 % | |
| 13 % VERSION: $Id: getX.m,v 1.13 2011/07/05 06:32:40 mauro Exp $ | |
| 14 % | |
| 15 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% | |
| 16 | |
| 17 function x = getX(obj, idx) | |
| 18 | |
| 19 ly = length(obj.y); | |
| 20 sx = size(obj.x); | |
| 21 ts = 1/obj.fs; | |
| 22 if sx(1) == 0 && sx(2) == 0 && ly>0 | |
| 23 x = 0:ts:obj.nsecs-ts; %linspace(0, obj.nsecs-1/obj.fs, obj.nsecs*obj.fs); | |
| 24 else | |
| 25 x = obj.x; | |
| 26 end | |
| 27 | |
| 28 % return always a column vector | |
| 29 if size(x,1) == 1 | |
| 30 x = x.'; | |
| 31 end | |
| 32 | |
| 33 % add the toffset | |
| 34 x = x + obj.toffset / 1000; | |
| 35 | |
| 36 % We can have rounding errors for strange sample rates and Nsecs | |
| 37 if length(x) < ly | |
| 38 while length(x) < ly | |
| 39 x = [x; x(end)+ts]; | |
| 40 end | |
| 41 end | |
| 42 | |
| 43 if length(x) ~= ly | |
| 44 x = x(1:length(obj.y)); | |
| 45 end | |
| 46 | |
| 47 if nargin == 2 | |
| 48 if strcmpi(idx, 'end') | |
| 49 x = x(end); | |
| 50 else | |
| 51 x = x(idx); | |
| 52 end | |
| 53 end | |
| 54 | |
| 55 end | |
| 56 |