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1 ## Copyright (C) 1996 Kurt Hornik |
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2 ## |
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3 ## This file is part of Octave. |
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4 ## |
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5 ## Octave is free software; you can redistribute it and/or modify it |
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6 ## under the terms of the GNU General Public License as published by |
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7 ## the Free Software Foundation; either version 2, or (at your option) |
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8 ## any later version. |
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9 ## |
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10 ## Octave is distributed in the hope that it will be useful, but |
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11 ## WITHOUT ANY WARRANTY; without even the implied warranty of |
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12 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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13 ## General Public License for more details. |
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14 ## |
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15 ## You should have received a copy of the GNU General Public License |
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16 ## along with Octave; see the file COPYING. If not, write to the Free |
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17 ## Software Foundation, 59 Temple Place - Suite 330, Boston, MA |
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18 ## 02111-1307, USA. |
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19 |
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20 ## usage: dezero (s) |
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21 ## |
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22 ## Remove trailing blank entries and all zero entries from the string s. |
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23 |
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24 ## Author: Kurt Hornik <Kurt.Hornik@ci.tuwien.ac.at> |
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25 ## Adapted-By: jwe |
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26 ## Adapted from deblank by A. S. Hodel (a.s.hodel@eng.auburn.edu) |
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27 ## (the name dezero is a reference to the Fermilab D0 experiment, |
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28 ## where my sister did her PhD research) |
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29 ## $Revision: 1.1.1.1 $ |
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30 ## $Log: dezero.m,v $ |
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31 ## Revision 1.1.1.1 1998/05/19 20:24:13 jwe |
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32 ## |
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33 ## Revision 1.3 1997/03/11 14:42:41 scotte |
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34 ## fixed implicit_str_to_num_ok bug a.s.hodel@eng.auburn.edu |
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35 ## |
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36 ## Revision 1.2 1997/03/03 22:52:20 hodel |
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37 ## fixed problem with conversion to/from numerical value |
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38 ## a.s.hodel@eng.auburn.edu |
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39 ## |
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40 ## Revision 1.1 1997/02/12 11:34:56 hodel |
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41 ## Initial revision |
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42 ## |
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43 ## Revision 1.3 1997/02/07 15:24:35 scotte |
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44 ## fixed to remove all null characters, then call deblank |
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45 ## |
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46 |
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47 function t = dezero (s) |
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48 |
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49 if (nargin != 1) |
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50 usage ("dezero (s)"); |
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51 elseif (isstr (s)) |
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52 |
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53 save_val = implicit_str_to_num_ok; |
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54 implicit_str_to_num_ok = 1; |
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55 |
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56 #disp("dezero: entry, s=") |
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57 #s |
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58 #disp("/dezero") |
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59 |
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60 [nr, nc] = size (s); |
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61 len = nr * nc; |
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62 |
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63 if (len == 0) |
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64 t = s; |
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65 else |
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66 |
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67 #disp("dezero: 1, s=") |
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68 #s |
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69 #disp("/dezero") |
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70 |
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71 s = reshape (s, 1, len); |
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72 |
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73 #disp("dezero: 2, s=") |
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74 #s |
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75 #disp("/dezero") |
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76 |
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77 # need to remove zeros first, then call deblank |
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78 s = 1*s; |
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79 t = deblank(setstr(s(find(s != 0) ))); |
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80 endif |
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81 |
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82 implicit_str_to_num_ok = save_val; |
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83 |
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84 else |
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85 error ("dezero: expecting string argument"); |
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86 endif |
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87 |
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88 endfunction |
