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1 ## Copyright (C) 2001 Laurent Mazet |
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2 ## |
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3 ## This program is free software; you can redistribute it and/or modify |
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4 ## it under the terms of the GNU General Public License as published by |
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5 ## the Free Software Foundation; either version 2 of the License, or |
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6 ## (at your option) any later version. |
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7 ## |
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8 ## This program is distributed in the hope that it will be useful, |
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9 ## but WITHOUT ANY WARRANTY; without even the implied warranty of |
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10 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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11 ## GNU General Public License for more details. |
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12 ## |
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13 ## You should have received a copy of the GNU General Public License |
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14 ## along with this program; if not, write to the Free Software |
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15 ## Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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16 |
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17 ## usage: M = vec2mat (V, c [, d]) |
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18 ## |
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19 ## Converts the vector V into a c column matrix with row priority |
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20 ## arrangement and with the final column padded with the value d |
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21 ## to the correct length. |
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22 ## |
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23 ## V: vector |
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24 ## c: number of colunms |
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25 ## d: value of padded elements (default 0) |
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26 ## |
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27 ## M: matrix. |
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28 |
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29 ## 2001-02-02 |
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30 ## initial release |
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31 |
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32 function M = vec2mat (V, c, val) |
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33 |
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34 switch (nargin) |
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35 case 1, |
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36 M = V; |
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37 return; |
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38 case 2, |
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39 val = 0; |
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40 case 3, |
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41 val = val; |
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42 otherwise |
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43 error ("usage: M = vec2mat (V, c [, d])"); |
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44 endswitch |
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45 |
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46 V = V.'; |
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47 V = V(:); |
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48 |
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49 r = ceil (length (V) / c); |
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50 |
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51 d = r * c - length (V); |
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52 if (d != 0) |
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53 V = [ V ; val*ones(d, 1) ]; |
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54 endif |
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55 |
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56 M = reshape (V, c, r).'; |
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57 |
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58 endfunction |
