% This example illustrates the use of the functions "bnds2lfr" % and "abcd2lfr". It is assumed that bounds relative to the % elements of the matrices A,B of a are known (minA, maxA, minB % and maxB). C and D are fixed. % "bnds2lfr" realizes A and B as LFR-objects: minA = [-2 -2 -4 ; 0 -5 -5 ; 0 0 -6]; maxA = [ 0 -2 -2 ; 0 -3 -5 ; 0 0 -6]; disp([minA maxA]) minB = [0.5 ; 0.5 ; 0.5]; maxB = [1.5 ; 0.5 ; 1.5]; disp([minB maxB]) C=[1 1 1]; D=1; % The parameter names of lfrA will be "A_i_j" % The parameter names of lfrB will be "B_i_j" lfrA = bnds2lfr('A_',minA,maxA); lfrB = bnds2lfr('B_',minB,maxB); % Then S = [lfrA lfrB;C D] is transformed into an input/output % LFR-object using "abcd2lfr" (3 states). sys = abcd2lfr([lfrA lfrB;C D],3); size(sys) % Note that only parameters with non-empty interval of variation % are created