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 =1;
end
% There are a total of 15 entries in each of the rate and state variable arrays.
% There are a total of 16 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_VOI = strpad('time in component environment (hour)');
LEGEND_STATES(:,1) = strpad('x in component x (dimensionless)');
LEGEND_CONSTANTS(:,1) = strpad('d in component model_parameters (first_order_rate_constant)');
LEGEND_CONSTANTS(:,2) = strpad('gamma in component model_parameters (first_order_rate_constant)');
LEGEND_CONSTANTS(:,3) = strpad('lambda in component model_parameters (first_order_rate_constant)');
LEGEND_CONSTANTS(:,4) = strpad('beta in component model_parameters (first_order_rate_constant)');
LEGEND_STATES(:,2) = strpad('v in component v (dimensionless)');
LEGEND_STATES(:,3) = strpad('y0 in component y0 (dimensionless)');
LEGEND_CONSTANTS(:,5) = strpad('a0 in component model_parameters (first_order_rate_constant)');
LEGEND_CONSTANTS(:,6) = strpad('eta in component model_parameters (first_order_rate_constant)');
LEGEND_CONSTANTS(:,7) = strpad('phi in component model_parameters (first_order_rate_constant)');
LEGEND_STATES(:,4) = strpad('L in component L (dimensionless)');
LEGEND_CONSTANTS(:,8) = strpad('pa in component model_parameters (first_order_rate_constant)');
LEGEND_STATES(:,5) = strpad('za in component za (dimensionless)');
LEGEND_STATES(:,6) = strpad('y1 in component y1 (dimensionless)');
LEGEND_CONSTANTS(:,9) = strpad('a1 in component model_parameters (first_order_rate_constant)');
LEGEND_CONSTANTS(:,10) = strpad('k in component model_parameters (first_order_rate_constant)');
LEGEND_CONSTANTS(:,11) = strpad('u in component model_parameters (first_order_rate_constant)');
LEGEND_STATES(:,7) = strpad('m_8 in component m_8 (dimensionless)');
LEGEND_CONSTANTS(:,12) = strpad('r in component model_parameters (first_order_rate_constant)');
LEGEND_STATES(:,8) = strpad('m_7 in component m_7 (dimensionless)');
LEGEND_STATES(:,9) = strpad('m_6 in component m_6 (dimensionless)');
LEGEND_STATES(:,10) = strpad('m_5 in component m_5 (dimensionless)');
LEGEND_STATES(:,11) = strpad('m_4 in component m_4 (dimensionless)');
LEGEND_STATES(:,12) = strpad('m_3 in component m_3 (dimensionless)');
LEGEND_STATES(:,13) = strpad('m_2 in component m_2 (dimensionless)');
LEGEND_STATES(:,14) = strpad('m_1 in component m_1 (dimensionless)');
LEGEND_STATES(:,15) = strpad('m_0 in component m_0 (dimensionless)');
LEGEND_CONSTANTS(:,13) = strpad('alpha in component model_parameters (first_order_rate_constant)');
LEGEND_CONSTANTS(:,14) = strpad('ca in component model_parameters (first_order_rate_constant)');
LEGEND_CONSTANTS(:,15) = strpad('ba in component model_parameters (first_order_rate_constant)');
LEGEND_ALGEBRAIC(:,1) = strpad('log_za in component za (dimensionless)');
LEGEND_CONSTANTS(:,16) = strpad('R0 in component R0 (dimensionless)');
LEGEND_RATES(:,1) = strpad('d/dt x in component x (dimensionless)');
LEGEND_RATES(:,3) = strpad('d/dt y0 in component y0 (dimensionless)');
LEGEND_RATES(:,6) = strpad('d/dt y1 in component y1 (dimensionless)');
LEGEND_RATES(:,4) = strpad('d/dt L in component L (dimensionless)');
LEGEND_RATES(:,2) = strpad('d/dt v in component v (dimensionless)');
LEGEND_RATES(:,7) = strpad('d/dt m_8 in component m_8 (dimensionless)');
LEGEND_RATES(:,8) = strpad('d/dt m_7 in component m_7 (dimensionless)');
LEGEND_RATES(:,9) = strpad('d/dt m_6 in component m_6 (dimensionless)');
LEGEND_RATES(:,10) = strpad('d/dt m_5 in component m_5 (dimensionless)');
LEGEND_RATES(:,11) = strpad('d/dt m_4 in component m_4 (dimensionless)');
LEGEND_RATES(:,12) = strpad('d/dt m_3 in component m_3 (dimensionless)');
LEGEND_RATES(:,13) = strpad('d/dt m_2 in component m_2 (dimensionless)');
LEGEND_RATES(:,14) = strpad('d/dt m_1 in component m_1 (dimensionless)');
LEGEND_RATES(:,15) = strpad('d/dt m_0 in component m_0 (dimensionless)');
LEGEND_RATES(:,5) = strpad('d/dt za in component za (dimensionless)');
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 = [];
STATES(:,1) = 1;
CONSTANTS(:,1) = 0.1;
CONSTANTS(:,2) = 0.5;
CONSTANTS(:,3) = 10;
CONSTANTS(:,4) = 0.1;
STATES(:,2) = 1;
STATES(:,3) = 0;
CONSTANTS(:,5) = 0.1;
CONSTANTS(:,6) = 0.01;
CONSTANTS(:,7) = 0.1;
STATES(:,4) = 0;
CONSTANTS(:,8) = 0.000001;
STATES(:,5) = 1;
STATES(:,6) = 0;
CONSTANTS(:,9) = 0.2;
CONSTANTS(:,10) = 1;
CONSTANTS(:,11) = 1;
STATES(:,7) = 0;
CONSTANTS(:,12) = 1;
STATES(:,8) = 0;
STATES(:,9) = 0;
STATES(:,10) = 0;
STATES(:,11) = 0;
STATES(:,12) = 0;
STATES(:,13) = 0;
STATES(:,14) = 0;
STATES(:,15) = 1;
CONSTANTS(:,13) = 0.2;
CONSTANTS(:,14) = 15.5;
CONSTANTS(:,15) = 0.1;
CONSTANTS(:,16) = (( CONSTANTS(:,3).*CONSTANTS(:,6))./( CONSTANTS(:,1).*CONSTANTS(:,9).*(CONSTANTS(:,5)+CONSTANTS(:,6)))).*(CONSTANTS(:,4)+( CONSTANTS(:,2).*CONSTANTS(:,7))./(CONSTANTS(:,7)+CONSTANTS(:,1)));
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(:,1) = CONSTANTS(:,3) - ( CONSTANTS(:,1).*STATES(:,1)+ CONSTANTS(:,4).*STATES(:,1).*STATES(:,2)+ CONSTANTS(:,2).*STATES(:,1).*STATES(:,2));
RATES(:,3) = ( CONSTANTS(:,4).*STATES(:,1).*STATES(:,2) - ( CONSTANTS(:,5).*STATES(:,3)+ CONSTANTS(:,6).*STATES(:,3)+ CONSTANTS(:,8).*STATES(:,3).*STATES(:,5)))+ CONSTANTS(:,7).*STATES(:,4);
RATES(:,6) = CONSTANTS(:,6).*STATES(:,3) - ( CONSTANTS(:,9).*STATES(:,6)+ CONSTANTS(:,8).*STATES(:,6).*STATES(:,5));
RATES(:,4) = CONSTANTS(:,2).*STATES(:,1).*STATES(:,2) - ( CONSTANTS(:,7).*STATES(:,4)+ CONSTANTS(:,1).*STATES(:,4));
RATES(:,2) = CONSTANTS(:,10).*STATES(:,6) - CONSTANTS(:,11).*STATES(:,2);
RATES(:,7) = 2.00000.*CONSTANTS(:,12).*STATES(:,8) - CONSTANTS(:,12).*STATES(:,7);
RATES(:,8) = 2.00000.*CONSTANTS(:,12).*STATES(:,9) - CONSTANTS(:,12).*STATES(:,8);
RATES(:,9) = 2.00000.*CONSTANTS(:,12).*STATES(:,10) - CONSTANTS(:,12).*STATES(:,9);
RATES(:,10) = 2.00000.*CONSTANTS(:,12).*STATES(:,11) - CONSTANTS(:,12).*STATES(:,10);
RATES(:,11) = 2.00000.*CONSTANTS(:,12).*STATES(:,12) - CONSTANTS(:,12).*STATES(:,11);
RATES(:,12) = 2.00000.*CONSTANTS(:,12).*STATES(:,13) - CONSTANTS(:,12).*STATES(:,12);
RATES(:,13) = 2.00000.*CONSTANTS(:,12).*STATES(:,14) - CONSTANTS(:,12).*STATES(:,13);
RATES(:,14) = 2.00000.*CONSTANTS(:,12).*STATES(:,15) - CONSTANTS(:,12).*STATES(:,14);
RATES(:,15) = - CONSTANTS(:,12).*STATES(:,15);
RATES(:,5) = ( CONSTANTS(:,13).*STATES(:,7)+ CONSTANTS(:,14).*(STATES(:,3)+STATES(:,6)).*STATES(:,5)) - CONSTANTS(:,15).*STATES(:,5);
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) = arbitrary_log(STATES(:,5), 10);
end
% Compute a logarithm to any base" +
function x = arbitrary_log(a, base)
x = log(a) ./ log(base);
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