41 lines
1.1 KiB
Mathematica
41 lines
1.1 KiB
Mathematica
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function varargout = getvariables(X,whatvars)
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%GETVARIABLES Returns variable indicies to variables used in a SDPVAR object
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%
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% i = getvariables(x)
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%
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% Input
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% x : SDPVAR object
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% Output
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% i : DOUBLE
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%
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% Note : The difference compared DEPENDS is that nonlinear terms
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% are reported as separate variables.
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switch nargin
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case 1
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varargout{1} = X.lmi_variables;
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case 2
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[sqrList,CompressedList] = yalmip('nonlinearvariables');
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used_variables = getvariables(X);
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if isempty(sqrList)
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LinearVariables = used_variables;
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NonlinearVariables=[];
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else
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LinearVariables = setdiff(used_variables,sqrList(:,1));
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NonlinearVariables = setdiff(used_variables,LinearVariables);
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end
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switch whatvars
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case 'linear'
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varargout{1} = LinearVariables;
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case 'nonlinear'
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varargout{1} = NonlinearVariables;
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case 'both'
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varargout{1} = LinearVariables;
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varargout{2} = NonlinearVariables;
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otherwise
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error
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end
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otherwise
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error
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end
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