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1 ## Copyright (C) 1996, 2000, 2002, 2004, 2005, 2007 |
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2 ## Auburn University. All rights reserved. |
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3 ## |
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4 ## This file is part of Octave. |
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5 ## |
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6 ## Octave is free software; you can redistribute it and/or modify it |
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7 ## under the terms of the GNU General Public License as published by |
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8 ## the Free Software Foundation; either version 3 of the License, or (at |
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9 ## your option) any later version. |
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10 ## |
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11 ## Octave is distributed in the hope that it will be useful, but |
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12 ## WITHOUT ANY WARRANTY; without even the implied warranty of |
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13 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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14 ## General Public License for more details. |
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15 ## |
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16 ## You should have received a copy of the GNU General Public License |
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17 ## along with Octave; see the file COPYING. If not, see |
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18 ## <http://www.gnu.org/licenses/>. |
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19 |
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20 ## O B S O L E T E: use ss instead. |
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21 ## function Asys = packsys(a,b,c[,d,dflg]) |
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22 ## |
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23 ## dflg: 0 for continuous time system, 1 for discrete-time system. |
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24 ## |
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25 ## defaults: |
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26 ## D: 0 matrix of appropriate dimension. |
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27 ## dflg: 0 (continuous time) |
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28 ## |
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29 ## Note: discrete-state sampling time is not included! |
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30 |
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31 ## Author: R. Bruce Tenison <btenison@eng.auburn.edu> |
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32 ## Created: July 29, 1994 |
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33 ## Modified by David Clem November 13, 1994 |
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34 ## Modified by A. S. Hodel April 1995 |
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35 |
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36 function Asys = packsys (a, b, c, d, dflg) |
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37 |
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38 warning("packsys is obsolete! Use ss instead."); |
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39 |
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40 if (nargin < 3 || nargin > 5) |
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41 disp ("packsys: Invalid number of arguments"); |
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42 endif |
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43 |
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44 ## check dflg |
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45 if (nargin == 5) |
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46 if (! isscalar (dflg)) |
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47 [m, n] = size(dflg); |
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48 error (["packsys: dflg (%d,%d) must be a scalar", m, n); |
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49 elseif (dflg != 0 && dflg != 1) |
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50 error ("packsys: dflg=%g must be 0 or 1", dflg); |
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51 endif |
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52 else |
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53 ## default condition |
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54 dflg = 0; |
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55 endif |
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56 |
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57 if (nargin == 3) |
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58 ## No D matrix. Form a zero one! |
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59 [brows, bcols] = size (b); |
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60 [crows, ccols] = size (c); |
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61 d = zeros (crows, bcols); |
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62 endif |
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63 |
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64 [n, m, p] = abcddim (a, b, c, d); |
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65 if (n == -1 || m == -1 || p == -1) |
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66 error ("packsys: incompatible dimensions") |
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67 endif |
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68 |
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69 Asys = ss (a, b, c, d, dflg); |
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70 |
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71 endfunction |
