Generated Code

The following is matlab code generated by the CellML API from this CellML file. (Back to language selection)

The raw code is available.

function [VOI, STATES, ALGEBRAIC, CONSTANTS] = mainFunction()
    % This is the "main function".  In Matlab, things work best if you rename this function to match the filename.
   [VOI, STATES, ALGEBRAIC, CONSTANTS] = solveModel();
end

function [algebraicVariableCount] = getAlgebraicVariableCount() 
    % Used later when setting a global variable with the number of algebraic variables.
    % Note: This is not the "main method".  
    algebraicVariableCount =2;
end
% There are a total of 9 entries in each of the rate and state variable arrays.
% There are a total of 38 entries in the constant variable array.
%

function [VOI, STATES, ALGEBRAIC, CONSTANTS] = solveModel()
    % Create ALGEBRAIC of correct size
    global algebraicVariableCount;  algebraicVariableCount = getAlgebraicVariableCount();
    % Initialise constants and state variables
    [INIT_STATES, CONSTANTS] = initConsts;

    % Set timespan to solve over 
    tspan = [0, 10];

    % Set numerical accuracy options for ODE solver
    options = odeset('RelTol', 1e-06, 'AbsTol', 1e-06, 'MaxStep', 1);

    % Solve model with ODE solver
    [VOI, STATES] = ode15s(@(VOI, STATES)computeRates(VOI, STATES, CONSTANTS), tspan, INIT_STATES, options);

    % Compute algebraic variables
    [RATES, ALGEBRAIC] = computeRates(VOI, STATES, CONSTANTS);
    ALGEBRAIC = computeAlgebraic(ALGEBRAIC, CONSTANTS, STATES, VOI);

    % Plot state variables against variable of integration
    [LEGEND_STATES, LEGEND_ALGEBRAIC, LEGEND_VOI, LEGEND_CONSTANTS] = createLegends();
    figure();
    plot(VOI, STATES);
    xlabel(LEGEND_VOI);
    l = legend(LEGEND_STATES);
    set(l,'Interpreter','none');
end

function [LEGEND_STATES, LEGEND_ALGEBRAIC, LEGEND_VOI, LEGEND_CONSTANTS] = createLegends()
    LEGEND_STATES = ''; LEGEND_ALGEBRAIC = ''; LEGEND_VOI = ''; LEGEND_CONSTANTS = '';
    LEGEND_CONSTANTS(:,1) = strpad('BW in component main (kilogram)');
    LEGEND_CONSTANTS(:,2) = strpad('Qcc in component main (litre_per_hr_kg)');
    LEGEND_CONSTANTS(:,3) = strpad('Qliv in component main (dimensionless)');
    LEGEND_CONSTANTS(:,4) = strpad('Qfat in component main (dimensionless)');
    LEGEND_CONSTANTS(:,5) = strpad('Qbrain in component main (dimensionless)');
    LEGEND_CONSTANTS(:,6) = strpad('Qslow in component main (dimensionless)');
    LEGEND_CONSTANTS(:,21) = strpad('Qc in component main (litre_per_hr)');
    LEGEND_CONSTANTS(:,29) = strpad('Ql in component main (litre_per_hr)');
    LEGEND_CONSTANTS(:,34) = strpad('Qf in component main (litre_per_hr)');
    LEGEND_CONSTANTS(:,36) = strpad('Qbr in component main (litre_per_hr)');
    LEGEND_CONSTANTS(:,37) = strpad('Qs in component main (litre_per_hr)');
    LEGEND_CONSTANTS(:,38) = strpad('Qr in component main (litre_per_hr)');
    LEGEND_CONSTANTS(:,7) = strpad('Vblood in component main (dimensionless)');
    LEGEND_CONSTANTS(:,8) = strpad('Vbrain in component main (dimensionless)');
    LEGEND_CONSTANTS(:,9) = strpad('Vliver in component main (dimensionless)');
    LEGEND_CONSTANTS(:,22) = strpad('Vfat in component main (dimensionless)');
    LEGEND_CONSTANTS(:,10) = strpad('Vslow in component main (dimensionless)');
    LEGEND_CONSTANTS(:,30) = strpad('Vrap in component main (dimensionless)');
    LEGEND_CONSTANTS(:,31) = strpad('Vf in component main (litre)');
    LEGEND_CONSTANTS(:,23) = strpad('Vs in component main (litre)');
    LEGEND_CONSTANTS(:,24) = strpad('Vl in component main (litre)');
    LEGEND_CONSTANTS(:,35) = strpad('Vr in component main (litre)');
    LEGEND_CONSTANTS(:,25) = strpad('Vbr in component main (litre)');
    LEGEND_CONSTANTS(:,26) = strpad('Vb in component main (litre)');
    LEGEND_CONSTANTS(:,32) = strpad('Vven in component main (litre)');
    LEGEND_CONSTANTS(:,33) = strpad('Vart in component main (litre)');
    LEGEND_CONSTANTS(:,11) = strpad('Pfat_bl in component main (dimensionless)');
    LEGEND_CONSTANTS(:,12) = strpad('Pslow_bl in component main (dimensionless)');
    LEGEND_CONSTANTS(:,13) = strpad('Pliv_bl in component main (dimensionless)');
    LEGEND_CONSTANTS(:,14) = strpad('Prapid_bl in component main (dimensionless)');
    LEGEND_CONSTANTS(:,15) = strpad('Pbrain_bl in component main (dimensionless)');
    LEGEND_CONSTANTS(:,16) = strpad('dose in component main (mg_per_kg)');
    LEGEND_CONSTANTS(:,17) = strpad('F in component main (dimensionless)');
    LEGEND_CONSTANTS(:,27) = strpad('D0 in component main (mg)');
    LEGEND_CONSTANTS(:,18) = strpad('Ka in component main (per_hr)');
    LEGEND_CONSTANTS(:,19) = strpad('Kfc in component main (per_hr)');
    LEGEND_CONSTANTS(:,28) = strpad('KF in component main (per_hr_kg)');
    LEGEND_VOI = strpad('t in component main (hr)');
    LEGEND_STATES(:,1) = strpad('A_fat in component main (mg)');
    LEGEND_STATES(:,2) = strpad('A_slow in component main (mg)');
    LEGEND_STATES(:,3) = strpad('A_liv in component main (mg)');
    LEGEND_STATES(:,4) = strpad('A_rapid in component main (mg)');
    LEGEND_STATES(:,5) = strpad('A_brain in component main (mg)');
    LEGEND_CONSTANTS(:,20) = strpad('A_blood in component main (mg)');
    LEGEND_STATES(:,6) = strpad('A_stomach in component main (mg)');
    LEGEND_STATES(:,7) = strpad('A_ven in component main (mg)');
    LEGEND_STATES(:,8) = strpad('A_art in component main (mg)');
    LEGEND_STATES(:,9) = strpad('A_liv_CL in component main (mg)');
    LEGEND_ALGEBRAIC(:,1) = strpad('C_art in component main (mg_per_litre)');
    LEGEND_ALGEBRAIC(:,2) = strpad('C_brain in component main (mg_per_litre)');
    LEGEND_RATES(:,7) = strpad('d/dt A_ven in component main (mg)');
    LEGEND_RATES(:,8) = strpad('d/dt A_art in component main (mg)');
    LEGEND_RATES(:,1) = strpad('d/dt A_fat in component main (mg)');
    LEGEND_RATES(:,2) = strpad('d/dt A_slow in component main (mg)');
    LEGEND_RATES(:,5) = strpad('d/dt A_brain in component main (mg)');
    LEGEND_RATES(:,4) = strpad('d/dt A_rapid in component main (mg)');
    LEGEND_RATES(:,6) = strpad('d/dt A_stomach in component main (mg)');
    LEGEND_RATES(:,3) = strpad('d/dt A_liv in component main (mg)');
    LEGEND_RATES(:,9) = strpad('d/dt A_liv_CL in component main (mg)');
    LEGEND_STATES  = LEGEND_STATES';
    LEGEND_ALGEBRAIC = LEGEND_ALGEBRAIC';
    LEGEND_RATES = LEGEND_RATES';
    LEGEND_CONSTANTS = LEGEND_CONSTANTS';
end

function [STATES, CONSTANTS] = initConsts()
    VOI = 0; CONSTANTS = []; STATES = []; ALGEBRAIC = [];
    CONSTANTS(:,1) = 0.1615;
    CONSTANTS(:,2) = 14;
    CONSTANTS(:,3) = 0.25;
    CONSTANTS(:,4) = 0.09;
    CONSTANTS(:,5) = 0.03;
    CONSTANTS(:,6) = 0.278;
    CONSTANTS(:,7) = 0.05;
    CONSTANTS(:,8) = 0.0116;
    CONSTANTS(:,9) = 0.04;
    CONSTANTS(:,10) = 0.63;
    CONSTANTS(:,11) = 186;
    CONSTANTS(:,12) = 3.4;
    CONSTANTS(:,13) = 6.1;
    CONSTANTS(:,14) = 6.1;
    CONSTANTS(:,15) = 3;
    CONSTANTS(:,16) = 60;
    CONSTANTS(:,17) = 0.8;
    CONSTANTS(:,18) = 0.1;
    CONSTANTS(:,19) = 6;
    STATES(:,1) = 0;
    STATES(:,2) = 0;
    STATES(:,3) = 0;
    STATES(:,4) = 0;
    STATES(:,5) = 0;
    CONSTANTS(:,20) = 0;
    STATES(:,7) = 0;
    STATES(:,8) = 0;
    STATES(:,9) = 0;
    CONSTANTS(:,21) =  CONSTANTS(:,2).*power(CONSTANTS(:,1), 0.740000);
    CONSTANTS(:,22) =  0.0100000.*( 20.0000.*CONSTANTS(:,1)+1.66400);
    CONSTANTS(:,23) =  CONSTANTS(:,10).*CONSTANTS(:,1);
    CONSTANTS(:,24) =  CONSTANTS(:,9).*CONSTANTS(:,1);
    CONSTANTS(:,25) =  CONSTANTS(:,8).*CONSTANTS(:,1);
    CONSTANTS(:,26) =  CONSTANTS(:,7).*CONSTANTS(:,1);
    CONSTANTS(:,27) =  CONSTANTS(:,17).*CONSTANTS(:,16).*CONSTANTS(:,1);
    CONSTANTS(:,28) = CONSTANTS(:,19)./power(CONSTANTS(:,1), 0.300000);
    CONSTANTS(:,29) =  CONSTANTS(:,3).*CONSTANTS(:,21);
    CONSTANTS(:,30) = (((1.00000 - CONSTANTS(:,7)) - CONSTANTS(:,9)) - CONSTANTS(:,22)) - CONSTANTS(:,10);
    CONSTANTS(:,31) =  CONSTANTS(:,22).*CONSTANTS(:,1);
    CONSTANTS(:,32) =  0.750000.*CONSTANTS(:,26);
    CONSTANTS(:,33) =  0.250000.*CONSTANTS(:,26);
    CONSTANTS(:,34) =  CONSTANTS(:,4).*CONSTANTS(:,21);
    CONSTANTS(:,35) =  CONSTANTS(:,30).*CONSTANTS(:,1);
    CONSTANTS(:,36) =  CONSTANTS(:,5).*CONSTANTS(:,21);
    CONSTANTS(:,37) =  CONSTANTS(:,6).*CONSTANTS(:,21);
    CONSTANTS(:,38) = (((CONSTANTS(:,21) - CONSTANTS(:,29)) - CONSTANTS(:,34)) - CONSTANTS(:,36)) - CONSTANTS(:,37);
    STATES(:,6) = CONSTANTS(:,27);
    if (isempty(STATES)), warning('Initial values for states not set');, end
end

function [RATES, ALGEBRAIC] = computeRates(VOI, STATES, CONSTANTS)
    global algebraicVariableCount;
    statesSize = size(STATES);
    statesColumnCount = statesSize(2);
    if ( statesColumnCount == 1)
        STATES = STATES';
        ALGEBRAIC = zeros(1, algebraicVariableCount);
        utilOnes = 1;
    else
        statesRowCount = statesSize(1);
        ALGEBRAIC = zeros(statesRowCount, algebraicVariableCount);
        RATES = zeros(statesRowCount, statesColumnCount);
        utilOnes = ones(statesRowCount, 1);
    end
    RATES(:,7) = (( CONSTANTS(:,34).*STATES(:,1))./CONSTANTS(:,31))./CONSTANTS(:,11)+(( CONSTANTS(:,36).*STATES(:,5))./CONSTANTS(:,25))./CONSTANTS(:,15)+(( CONSTANTS(:,37).*STATES(:,2))./CONSTANTS(:,23))./CONSTANTS(:,12)+(( CONSTANTS(:,29).*STATES(:,3))./CONSTANTS(:,24))./CONSTANTS(:,13)+(( CONSTANTS(:,38).*STATES(:,4))./CONSTANTS(:,35))./CONSTANTS(:,14);
    RATES(:,1) =  CONSTANTS(:,34).*(STATES(:,8)./CONSTANTS(:,26) - (STATES(:,1)./CONSTANTS(:,31))./CONSTANTS(:,11));
    RATES(:,2) =  CONSTANTS(:,37).*(STATES(:,8)./CONSTANTS(:,26) - (STATES(:,2)./CONSTANTS(:,23))./CONSTANTS(:,12));
    RATES(:,5) =  CONSTANTS(:,36).*(STATES(:,8)./CONSTANTS(:,26) - (STATES(:,5)./CONSTANTS(:,25))./CONSTANTS(:,15));
    RATES(:,4) =  CONSTANTS(:,38).*(STATES(:,8)./CONSTANTS(:,26) - (STATES(:,4)./CONSTANTS(:,35))./CONSTANTS(:,14));
    RATES(:,6) =   - CONSTANTS(:,18).*STATES(:,6);
    RATES(:,3) = ( CONSTANTS(:,29).*(STATES(:,8)./CONSTANTS(:,26) - (STATES(:,3)./CONSTANTS(:,24))./CONSTANTS(:,13)) - (( CONSTANTS(:,28).*CONSTANTS(:,24).*STATES(:,3))./CONSTANTS(:,24))./CONSTANTS(:,13))+ CONSTANTS(:,18).*STATES(:,6);
    RATES(:,9) = (( CONSTANTS(:,28).*CONSTANTS(:,24).*STATES(:,3))./CONSTANTS(:,24))./CONSTANTS(:,13);
    RATES(:,8) = RATES(:,7) - ( CONSTANTS(:,21).*STATES(:,8))./CONSTANTS(:,26);
   RATES = RATES';
end

% Calculate algebraic variables
function ALGEBRAIC = computeAlgebraic(ALGEBRAIC, CONSTANTS, STATES, VOI)
    statesSize = size(STATES);
    statesColumnCount = statesSize(2);
    if ( statesColumnCount == 1)
        STATES = STATES';
        utilOnes = 1;
    else
        statesRowCount = statesSize(1);
        utilOnes = ones(statesRowCount, 1);
    end
    ALGEBRAIC(:,1) = STATES(:,8)./CONSTANTS(:,26);
    ALGEBRAIC(:,2) = STATES(:,5)./CONSTANTS(:,25);
end

% Pad out or shorten strings to a set length
function strout = strpad(strin)
    req_length = 160;
    insize = size(strin,2);
    if insize > req_length
        strout = strin(1:req_length);
    else
        strout = [strin, blanks(req_length - insize)];
    end
end