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1 | function Y=sum(X,I) |
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2 | %SUM (overloaded) |
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3 | |
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4 | % Author Johan Löfberg |
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5 | % $Id: sum.m,v 1.7 2006/07/26 20:17:58 joloef Exp $ |
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6 | |
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7 | try |
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8 | n = X.dim(1); |
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9 | m = X.dim(2); |
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10 | if nargin==1 |
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11 | Y = X; |
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12 | if n==1 | m==1 |
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13 | % Spezialized code... |
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14 | Y.basis = sum(Y.basis,1); |
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15 | Y.dim(1) = 1; |
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16 | Y.dim(2) = 1; |
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17 | temp = 1; |
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18 | else |
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19 | % Standard case |
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20 | |
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21 | temp = sum(reshape(X.basis(:,1),n,m)); |
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22 | Y.basis = kron(speye(m),ones(1,n))*X.basis; |
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23 | |
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24 | end |
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25 | else |
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26 | Y = X; |
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27 | temp = sum(reshape(X.basis(:,1),n,m),I); |
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28 | Y.basis = temp(:); |
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29 | for i = 1:length(Y.lmi_variables) |
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30 | temp = sum(reshape(X.basis(:,i+1),n,m),I); |
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31 | Y.basis(:,i+1) = temp(:); |
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32 | end |
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33 | end |
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34 | catch |
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35 | error(lasterr) |
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36 | end |
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37 | Y.dim(1) = size(temp,1); |
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38 | Y.dim(2) = size(temp,2); |
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39 | % Reset info about conic terms |
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40 | Y.conicinfo = [0 0]; |
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41 | Y = clean(Y); |
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