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2303
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1 ### Copyright (C) 1996 John W. Eaton |
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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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245
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19 |
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4
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20 function grid (x) |
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21 |
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2303
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22 ## usage: grid ("on" | "off") |
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23 ## |
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24 ## Turn grid lines on or off for plotting. |
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25 ## |
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26 ## If the argument is omitted, "on" is assumed. |
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27 ## |
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28 ## See also: plot, semilogx, semilogy, loglog, polar, mesh, contour, |
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29 ## bar, stairs, gplot, gsplot, replot, xlabel, ylabel, title |
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4
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30 |
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31 if (nargin == 0) |
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32 set grid; |
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33 elseif (nargin == 1) |
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34 if (isstr (x)) |
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35 if (strcmp ("off", x)) |
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36 set nogrid; |
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37 elseif (strcmp ("on", x)) |
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38 set grid; |
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39 else |
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904
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40 usage ("grid (\"on\" | \"off\")"); |
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4
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41 endif |
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42 else |
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904
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43 error ("grid: argument must be a string"); |
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4
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44 endif |
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45 else |
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46 error ("usage: grid (\"on\" | \"off\")"); |
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47 endif |
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48 |
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49 endfunction |
