# Size of variable arrays: sizeAlgebraic = 9 sizeStates = 19 sizeConstants = 69 from math import * from numpy import * def createLegends(): legend_states = [""] * sizeStates legend_rates = [""] * sizeStates legend_algebraic = [""] * sizeAlgebraic legend_voi = "" legend_constants = [""] * sizeConstants legend_voi = "time in component environment (minute)" legend_states[0] = "Clb2 in component Clb2 (dimensionless)" legend_constants[0] = "epsilon in component Clb2 (dimensionless)" legend_constants[1] = "Jm in component Clb2 (dimensionless)" legend_constants[2] = "ks_clb in component Clb2 (first_order_rate_constant)" legend_constants[3] = "kd_clb_1 in component kinetic_parameters (first_order_rate_constant)" legend_constants[4] = "kd_clb_2 in component kinetic_parameters (first_order_rate_constant)" legend_constants[5] = "kd_clb_3 in component kinetic_parameters (first_order_rate_constant)" legend_algebraic[8] = "kswe in component kinetic_parameters (first_order_rate_constant)" legend_algebraic[7] = "kmih in component kinetic_parameters (first_order_rate_constant)" legend_constants[6] = "kass in component kinetic_parameters (first_order_rate_constant)" legend_constants[7] = "kdiss in component kinetic_parameters (first_order_rate_constant)" legend_constants[8] = "kd_sic in component kinetic_parameters (first_order_rate_constant)" legend_constants[9] = "kd_sic_1 in component kinetic_parameters (first_order_rate_constant)" legend_constants[10] = "kd_sic_2 in component kinetic_parameters (first_order_rate_constant)" legend_states[1] = "M in component M (dimensionless)" legend_states[2] = "Mcm_a in component Mcm_a (dimensionless)" legend_states[3] = "Cdh1_a in component Cdh1_a (dimensionless)" legend_states[4] = "Cdc20_a in component Cdc20_a (dimensionless)" legend_states[5] = "Sic1 in component Sic1 (dimensionless)" legend_states[6] = "PClb2 in component PClb2 (dimensionless)" legend_states[7] = "Trim in component Trim (dimensionless)" legend_states[8] = "Cln in component Cln (dimensionless)" legend_states[9] = "PTrim in component PTrim (dimensionless)" legend_constants[11] = "Ji_mcm in component Mcm_a (dimensionless)" legend_constants[12] = "Ja_mcm in component Mcm_a (dimensionless)" legend_constants[13] = "ki_mcm in component Mcm_a (first_order_rate_constant)" legend_constants[14] = "ka_mcm in component Mcm_a (first_order_rate_constant)" legend_algebraic[0] = "Mcm in component Mcm (dimensionless)" legend_constants[15] = "ks_sic in component Sic1 (first_order_rate_constant)" legend_states[10] = "Mih1_a in component Mih1_a (dimensionless)" legend_constants[16] = "Ji_mih in component Mih1_a (dimensionless)" legend_constants[17] = "Ja_mih in component Mih1_a (dimensionless)" legend_constants[18] = "Vi_mih in component Mih1_a (first_order_rate_constant)" legend_constants[19] = "Va_mih in component Mih1_a (first_order_rate_constant)" legend_algebraic[1] = "Mih1 in component Mih1 (dimensionless)" legend_states[11] = "IE_a in component IE_a (dimensionless)" legend_constants[20] = "Ji_ie in component IE_a (dimensionless)" legend_constants[21] = "Ja_ie in component IE_a (dimensionless)" legend_constants[22] = "ki_ie in component IE_a (first_order_rate_constant)" legend_constants[23] = "ka_ie in component IE_a (first_order_rate_constant)" legend_algebraic[2] = "IE in component IE (dimensionless)" legend_constants[24] = "Ji_cdc20 in component kinetic_parameters (dimensionless)" legend_constants[25] = "Ja_cdc20 in component kinetic_parameters (dimensionless)" legend_constants[26] = "ki_cdc20 in component kinetic_parameters (first_order_rate_constant)" legend_constants[27] = "kd_cdc20 in component kinetic_parameters (first_order_rate_constant)" legend_constants[28] = "ka_cdc20 in component kinetic_parameters (first_order_rate_constant)" legend_states[12] = "Cdc20 in component Cdc20 (dimensionless)" legend_constants[29] = "ks_cdc20_1 in component Cdc20 (first_order_rate_constant)" legend_constants[30] = "ks_cdc20_2 in component Cdc20 (first_order_rate_constant)" legend_constants[31] = "Js_cdc20 in component Cdc20 (dimensionless)" legend_constants[32] = "Ji_cdh in component Cdh1_a (dimensionless)" legend_constants[33] = "Ja_cdh in component Cdh1_a (dimensionless)" legend_constants[34] = "ki_cdh in component Cdh1_a (first_order_rate_constant)" legend_constants[35] = "ka_cdh_1 in component Cdh1_a (first_order_rate_constant)" legend_constants[36] = "ki_cdh_1 in component Cdh1_a (first_order_rate_constant)" legend_constants[37] = "ka_cdh_2 in component Cdh1_a (first_order_rate_constant)" legend_algebraic[3] = "Cdh1 in component Cdh1 (dimensionless)" legend_constants[38] = "ks_cln in component Cln (first_order_rate_constant)" legend_constants[39] = "kd_cln in component Cln (first_order_rate_constant)" legend_states[13] = "SBF_a in component SBF_a (dimensionless)" legend_constants[40] = "Ji_sbf in component SBF_a (dimensionless)" legend_constants[41] = "Ja_sbf in component SBF_a (dimensionless)" legend_constants[42] = "ki_sbf_1 in component SBF_a (first_order_rate_constant)" legend_constants[43] = "ka_sbf_1 in component SBF_a (first_order_rate_constant)" legend_constants[44] = "ki_sbf_2 in component SBF_a (first_order_rate_constant)" legend_constants[45] = "ka_sbf_2 in component SBF_a (first_order_rate_constant)" legend_algebraic[4] = "SBF in component SBF (dimensionless)" legend_states[14] = "Swe1 in component Swe1 (dimensionless)" legend_constants[46] = "ks_swe in component Swe1 (first_order_rate_constant)" legend_constants[47] = "ks_sweC in component Swe1 (first_order_rate_constant)" legend_constants[48] = "khsl1 in component kinetic_parameters (first_order_rate_constant)" legend_constants[49] = "khsl1r in component kinetic_parameters (first_order_rate_constant)" legend_constants[50] = "kd_swe_1 in component kinetic_parameters (first_order_rate_constant)" legend_constants[51] = "Ji_wee in component kinetic_parameters (dimensionless)" legend_constants[52] = "Ja_wee in component kinetic_parameters (dimensionless)" legend_constants[53] = "Vi_wee in component kinetic_parameters (first_order_rate_constant)" legend_constants[54] = "Va_wee in component kinetic_parameters (first_order_rate_constant)" legend_algebraic[5] = "BUD in component BUD (dimensionless)" legend_states[15] = "PSwe1 in component PSwe1 (dimensionless)" legend_states[16] = "Swe1M in component Swe1M (dimensionless)" legend_states[17] = "PSwe1M in component PSwe1M (dimensionless)" legend_constants[55] = "kd_swe_2 in component PSwe1M (first_order_rate_constant)" legend_states[18] = "BE in component BE (dimensionless)" legend_constants[56] = "ks_bud in component BE (first_order_rate_constant)" legend_constants[57] = "kd_bud in component BE (first_order_rate_constant)" legend_constants[58] = "mu in component M (first_order_rate_constant)" legend_constants[59] = "IE_total in component IE (dimensionless)" legend_constants[60] = "Cdh1_total in component Cdh1 (dimensionless)" legend_constants[61] = "Mih1_total in component Mih1 (dimensionless)" legend_constants[62] = "Mcm_total in component Mcm (dimensionless)" legend_constants[63] = "SBF_total in component SBF (dimensionless)" legend_algebraic[6] = "Swe1_total in component Swe1_total (dimensionless)" legend_constants[64] = "kswe_1 in component kinetic_parameters (first_order_rate_constant)" legend_constants[65] = "kswe_2 in component kinetic_parameters (first_order_rate_constant)" legend_constants[66] = "kswe_3 in component kinetic_parameters (first_order_rate_constant)" legend_constants[67] = "kmih_1 in component kinetic_parameters (first_order_rate_constant)" legend_constants[68] = "kmih_2 in component kinetic_parameters (first_order_rate_constant)" legend_rates[0] = "d/dt Clb2 in component Clb2 (dimensionless)" legend_rates[6] = "d/dt PClb2 in component PClb2 (dimensionless)" legend_rates[7] = "d/dt Trim in component Trim (dimensionless)" legend_rates[9] = "d/dt PTrim in component PTrim (dimensionless)" legend_rates[2] = "d/dt Mcm_a in component Mcm_a (dimensionless)" legend_rates[5] = "d/dt Sic1 in component Sic1 (dimensionless)" legend_rates[10] = "d/dt Mih1_a in component Mih1_a (dimensionless)" legend_rates[11] = "d/dt IE_a in component IE_a (dimensionless)" legend_rates[4] = "d/dt Cdc20_a in component Cdc20_a (dimensionless)" legend_rates[12] = "d/dt Cdc20 in component Cdc20 (dimensionless)" legend_rates[3] = "d/dt Cdh1_a in component Cdh1_a (dimensionless)" legend_rates[8] = "d/dt Cln in component Cln (dimensionless)" legend_rates[13] = "d/dt SBF_a in component SBF_a (dimensionless)" legend_rates[14] = "d/dt Swe1 in component Swe1 (dimensionless)" legend_rates[15] = "d/dt PSwe1 in component PSwe1 (dimensionless)" legend_rates[16] = "d/dt Swe1M in component Swe1M (dimensionless)" legend_rates[17] = "d/dt PSwe1M in component PSwe1M (dimensionless)" legend_rates[18] = "d/dt BE in component BE (dimensionless)" legend_rates[1] = "d/dt M in component M (dimensionless)" return (legend_states, legend_algebraic, legend_voi, legend_constants) def initConsts(): constants = [0.0] * sizeConstants; states = [0.0] * sizeStates; states[0] = 0.184 constants[0] = 0.5 constants[1] = 10 constants[2] = 0.015 constants[3] = 0.015 constants[4] = 1 constants[5] = 0.1 constants[6] = 300 constants[7] = 0.1 constants[8] = 0.01 constants[9] = 1 constants[10] = 3 states[1] = 0.802 states[2] = 0.933 states[3] = 0.993 states[4] = 1.438 states[5] = 0.003 states[6] = 0 states[7] = 0.084 states[8] = 0.054 states[9] = 0 constants[11] = 0.1 constants[12] = 0.1 constants[13] = 0.15 constants[14] = 1 constants[15] = 0.1 states[10] = 0.808 constants[16] = 0.1 constants[17] = 0.1 constants[18] = 0.3 constants[19] = 1 states[11] = 0.522 constants[20] = 0.01 constants[21] = 0.01 constants[22] = 0.04 constants[23] = 0.1 constants[24] = 0.001 constants[25] = 0.001 constants[26] = 0.25 constants[27] = 0.1 constants[28] = 1 states[12] = 1.172 constants[29] = 0.005 constants[30] = 0.3 constants[31] = 0.3 constants[32] = 0.01 constants[33] = 0.01 constants[34] = 35 constants[35] = 1 constants[36] = 2 constants[37] = 10 constants[38] = 0.1 constants[39] = 0.1 states[13] = 0.124 constants[40] = 0.01 constants[41] = 0.01 constants[42] = 1 constants[43] = 1 constants[44] = 2 constants[45] = 0 states[14] = 0 constants[46] = 0.0025 constants[47] = 0 constants[48] = 1 constants[49] = 0.01 constants[50] = 0.007 constants[51] = 0.05 constants[52] = 0.05 constants[53] = 1 constants[54] = 0.3 states[15] = 0 states[16] = 0.018 states[17] = 0.013 constants[55] = 0.05 states[18] = 0 constants[56] = 0.1 constants[57] = 0.1 constants[58] = 0.005 constants[59] = 1 constants[60] = 1 constants[61] = 1 constants[62] = 1 constants[63] = 1 constants[64] = 2 constants[65] = 0.01 constants[66] = 0.2 constants[67] = 5 constants[68] = 0.5 return (states, constants) def computeRates(voi, states, constants): rates = [0.0] * sizeStates; algebraic = [0.0] * sizeAlgebraic rates[5] = (constants[15]+constants[7]*(states[9]+states[7])+(constants[3]+constants[4]*states[3]+constants[5]*states[4])*(states[9]+states[7]))-((constants[8]+constants[9]*states[8]+constants[10]*states[0])*states[5]+constants[6]*states[5]*(states[0]+states[6])) rates[4] = (constants[28]*states[11]*states[12])/(constants[25]+states[12])-((constants[26]*states[4])/(constants[24]+states[4])+constants[27]*states[4]) rates[12] = (constants[29]+(constants[30]*(power(states[0], 4.00000)))/(power(constants[31], 4.00000)+power(states[0], 4.00000))+(constants[26]*states[4])/(constants[24]+states[4]))-((constants[28]*states[11]*states[12])/(constants[25]+states[12])+constants[27]*states[12]) rates[8] = constants[38]*states[13]-constants[39]*states[8] rates[18] = constants[56]*states[8]-constants[57]*states[18] rates[1] = constants[58]*states[1] algebraic[0] = constants[62]-states[2] rates[2] = (-constants[13]*states[2])/(constants[11]+states[2])+(constants[14]*algebraic[0]*states[0])/(constants[12]+algebraic[0]) algebraic[1] = constants[61]-states[10] rates[10] = (-constants[18]*states[10])/(constants[16]+states[10])+(constants[19]*states[0]*algebraic[1])/(constants[17]+algebraic[1]) algebraic[2] = constants[59]-states[11] rates[11] = (-constants[22]*states[11])/(constants[20]+states[11])+(constants[23]*states[0]*algebraic[2])/(constants[21]+algebraic[2]) algebraic[3] = constants[60]-states[3] rates[3] = (-(constants[34]*states[0]+constants[36]*states[8])*states[3])/(constants[32]+states[3])+((constants[35]+constants[37]*states[4])*algebraic[3])/(constants[33]+algebraic[3]) algebraic[4] = constants[63]-states[13] rates[13] = (-(constants[42]+constants[44]*states[0])*states[13])/(constants[40]+states[13])+((constants[43]*states[1]+constants[45]*states[8])*algebraic[4])/(constants[41]+algebraic[4]) algebraic[5] = custom_piecewise([less_equal(states[18] , 0.600000) & less(states[0] , 0.200000), 0.00000 , True, 1.00000]) rates[14] = (constants[46]*states[13]+constants[47]+constants[49]*states[16]+(constants[54]*states[15])/(constants[52]+states[15]))-(constants[48]*algebraic[5]*states[14]+(constants[53]*states[0]*states[14])/(constants[51]+states[14])+constants[50]*states[14]) rates[15] = (constants[49]*states[17]+(constants[53]*states[14]*states[0])/(constants[51]+states[14]))-(constants[48]*algebraic[5]*states[15]+(constants[54]*states[15])/(constants[52]+states[15])+constants[50]*states[15]) rates[16] = (constants[48]*algebraic[5]*states[14]+(constants[54]*states[17])/(constants[52]+states[17]))-(constants[49]*states[16]+(constants[53]*states[0]*states[16])/(constants[51]+states[16])+constants[50]*states[16]) rates[17] = (constants[48]*algebraic[5]*states[15]+(constants[53]*states[0]*states[16])/(constants[51]+states[16]))-(constants[49]*states[17]+(constants[54]*states[17])/(constants[52]+states[17])+constants[55]*states[17]) algebraic[8] = constants[64]*states[14]+constants[65]*states[16]+constants[66]*states[15] algebraic[7] = constants[67]*states[10]+constants[68]*algebraic[1] rates[0] = ((constants[2]*(constants[0]+states[2])*states[1])/(1.00000+states[1]/constants[1])+algebraic[7]*states[6]+constants[7]*states[7]+(constants[8]+constants[9]*states[8]+constants[10]*states[0])*states[7])-((constants[3]+constants[4]*states[3]+constants[5]*states[4])*states[0]+algebraic[8]*states[0]+constants[6]*states[5]*states[0]) rates[6] = (algebraic[8]*states[0]+constants[7]*states[9]+(constants[8]+constants[9]*states[8]+constants[10]*states[0])*states[9])-((constants[3]+constants[4]*states[3]+constants[5]*states[4])*states[6]+algebraic[7]*states[6]+constants[6]*states[5]*states[6]) rates[7] = (constants[6]*states[5]*states[0]+algebraic[7]*states[9])-(constants[7]*states[7]+(constants[8]+constants[9]*states[8]+constants[10]*states[0])*states[7]+(constants[3]+constants[4]*states[3]+constants[5]*states[4])*states[7]+algebraic[8]*states[7]) rates[9] = (algebraic[8]*states[7]+constants[6]*states[5]*states[6])-(constants[7]*states[9]+(constants[8]+constants[9]*states[8]+constants[10]*states[0])*states[9]+(constants[3]+constants[4]*states[3]+constants[5]*states[4])*states[9]+algebraic[7]*states[9]) return(rates) def computeAlgebraic(constants, states, voi): algebraic = array([[0.0] * len(voi)] * sizeAlgebraic) states = array(states) voi = array(voi) algebraic[0] = constants[62]-states[2] algebraic[1] = constants[61]-states[10] algebraic[2] = constants[59]-states[11] algebraic[3] = constants[60]-states[3] algebraic[4] = constants[63]-states[13] algebraic[5] = custom_piecewise([less_equal(states[18] , 0.600000) & less(states[0] , 0.200000), 0.00000 , True, 1.00000]) algebraic[8] = constants[64]*states[14]+constants[65]*states[16]+constants[66]*states[15] algebraic[7] = constants[67]*states[10]+constants[68]*algebraic[1] algebraic[6] = states[14]+states[15]+states[16]+states[17] return algebraic def custom_piecewise(cases): """Compute result of a piecewise function""" return select(cases[0::2],cases[1::2]) def solve_model(): """Solve model with ODE solver""" from scipy.integrate import ode # Initialise constants and state variables (init_states, constants) = initConsts() # Set timespan to solve over voi = linspace(0, 10, 500) # Construct ODE object to solve r = ode(computeRates) r.set_integrator('vode', method='bdf', atol=1e-06, rtol=1e-06, max_step=1) r.set_initial_value(init_states, voi[0]) r.set_f_params(constants) # Solve model states = array([[0.0] * len(voi)] * sizeStates) states[:,0] = init_states for (i,t) in enumerate(voi[1:]): if r.successful(): r.integrate(t) states[:,i+1] = r.y else: break # Compute algebraic variables algebraic = computeAlgebraic(constants, states, voi) return (voi, states, algebraic) def plot_model(voi, states, algebraic): """Plot variables against variable of integration""" import pylab (legend_states, legend_algebraic, legend_voi, legend_constants) = createLegends() pylab.figure(1) pylab.plot(voi,vstack((states,algebraic)).T) pylab.xlabel(legend_voi) pylab.legend(legend_states + legend_algebraic, loc='best') pylab.show() if __name__ == "__main__": (voi, states, algebraic) = solve_model() plot_model(voi, states, algebraic)