46 lines
781 B
Mathematica
46 lines
781 B
Mathematica
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function Y=sparse(varargin)
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%SPARSE (overloaded)
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if nargin < 3
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error('At-least 3 arguments needed');
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end
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data = varargin{3};
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ns = varargin{1};
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ms = varargin{2};
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if length(ns)~=length(ms) | length(ms)~=length(data)
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error('Length of first 3 arguments must be equal');
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end
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if min(size(data))>1
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error('Third argument should be a vector');
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end
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if nargin < 4
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n = max(ns);
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else
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n = varargin{4};
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end
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if nargin < 5
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m = max(ms);
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else
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m = varargin{5};
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end
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if any(ms>m)
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error('Dimension mismatch')
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end
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if any(ns>n)
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error('Dimension mismatch')
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end
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Y = data;
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Y.dim(1) = n;
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Y.dim(2) = m;
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[i1,j1,s1] = find(data.basis);
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ind = ns+(ms-1)*n;
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Y.basis = sparse(ind(i1),j1,s1,n*m,1+length(Y.lmi_variables));
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% Reset info about conic terms
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Y.conicinfo = [0 0];
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