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1 # Copyright (C) 1993 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 the |
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7 # Free Software Foundation; either version 2, or (at your option) any |
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8 # later version. |
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9 # |
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10 # Octave is distributed in the hope that it will be useful, but WITHOUT |
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11 # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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12 # FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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13 # 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, 675 Mass Ave, Cambridge, MA 02139, USA. |
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18 |
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4
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19 function plot (x1, x2) |
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20 |
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21 # usage: plot (x, y) |
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22 # |
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23 # If the first argument is a vector and the second is a matrix, the |
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24 # the vector is plotted versus the columns (or rows) of the matrix. |
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25 # (using whichever combination matches, with columns tried first.) |
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26 # |
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27 # If the first argument is a matrix and the second is a vector, the |
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28 # the columns (or rows) of the matrix are plotted versus the vector. |
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29 # (using whichever combination matches, with columns tried first.) |
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30 # |
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31 # If both arguments are vectors, the elements of y are plotted versus |
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32 # the elements of x. |
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33 # |
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34 # If both arguments are matrices, the columns of y are plotted versus |
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35 # the columns of x. In this case, both matrices must have the same |
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36 # number of rows and columns and no attempt is made to transpose the |
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37 # arguments to make the number of rows match. |
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38 # |
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39 # If both arguments are scalars, a single point is plotted. |
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40 # |
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41 # If only one argument is given, it is taken as the set of y |
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42 # coordinates and the x coordinates are taken to be the indices of the |
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43 # elements, starting with 1. |
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44 # |
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45 # See also: semilogx, semilogy, loglog, polar, mesh, contour, |
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46 # bar, stairs, gplot, gsplot, replot, xlabel, ylabel, title |
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47 |
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48 set nologscale; |
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49 set nopolar; |
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50 |
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51 if (nargin == 1) |
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52 plot_int (x1); |
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53 elseif (nargin == 2) |
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54 plot_int (x1, x2); |
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55 else |
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56 usage = sprintf ("usage: plot (x)\n"); |
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57 usage = sprintf ("%s plot (x, y)", usage); |
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58 error (usage); |
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59 endif |
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60 |
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61 endfunction |
