Example #1
0
        public static SampleValue MassCompileSample(Symbol outSymbol, SampleValue inSample, Netlist netlist, Style style)
        {
            //inSample.Consume(null, 0, null, netlist, style); // this prevents simulating a sample and its massaction version in succession
            List <ReactionValue> inReactions = inSample.RelevantReactions(netlist, style);
            CRN inCrn = new CRN(inSample, inReactions);

            Gui.Log(Environment.NewLine + inCrn.FormatNice(style));

            (Lst <Polynomize.ODE> odes, Lst <Polynomize.Equation> eqs)             = Polynomize.FromCRN(inCrn);
            (Lst <Polynomize.PolyODE> polyOdes, Lst <Polynomize.Equation> polyEqs) = Polynomize.PolynomizeODEs(odes, eqs.Reverse(), style);
            Gui.Log("Polynomize:" + Environment.NewLine + Polynomize.PolyODE.Format(polyOdes, style)
                    + "Initial:" + Environment.NewLine + Polynomize.Equation.Format(polyEqs, style));

            (Lst <Polynomize.PolyODE> posOdes, Lst <Polynomize.Equation> posEqs, Dictionary <Symbol, SpeciesFlow> dict, Lst <Positivize.Subst> substs) = Positivize.PositivizeODEs(polyOdes, polyEqs, style);
            Gui.Log("Positivize:" + Environment.NewLine + Polynomize.PolyODE.Format(posOdes, style)
                    + "Initial:" + Environment.NewLine + Polynomize.Equation.Format(posEqs, style));

            Lst <ReactionValue> outReactions = Hungarize.ToReactions(posOdes, style);

            Gui.Log("Hungarize:" + Environment.NewLine + outReactions.FoldR((r, s) => { return(r.FormatNormal(style) + Environment.NewLine + s); }, "")
                    + "Initial:" + Environment.NewLine + Polynomize.Equation.Format(posEqs, style));

            SampleValue outSample = new SampleValue(outSymbol, new StateMap(outSymbol, new List <SpeciesValue> {
            }, new State(0, lna: inSample.stateMap.state.lna)), new NumberValue(inSample.Volume()), new NumberValue(inSample.Temperature()), produced: true);

            netlist.Emit(new SampleEntry(outSample));
            posOdes.Each(ode => {
                Flow initFlow = Polynomize.Equation.ToFlow(ode.var, posEqs, style).Normalize(style);
                double init; if (initFlow is NumberFlow num)
                {
                    init = num.value;
                }
                else
                {
                    throw new Error("Cannot generate a simulatable sample because initial values contain constants (but the symbolic version has been generated assuming constants are nonnegative).");
                }
                if (init < 0)
                {
                    throw new Error("Negative initial value of Polynomized ODE for: " + Polynomize.Lookup(ode.var, eqs, style).Format(style) + " = " + init + Environment.NewLine + Polynomize.Equation.Format(eqs, style));
                }
                outSample.stateMap.AddDimensionedSpecies(new SpeciesValue(ode.var.species, -1.0), init, 0.0, "M", outSample.Volume(), style);
            });
            outReactions.Each(reaction => { netlist.Emit(new ReactionEntry(reaction)); });

            substs.Each(subst => { ReportEntry report = new ReportEntry(null, OpFlow.Op(subst.plus, "-", subst.minus), null, outSample); outSample.AddReport(report); });
            foreach (KeyValuePair <Symbol, SpeciesFlow> keypair in dict)
            {
                ReportEntry report = new ReportEntry(null, keypair.Value, null, outSample); outSample.AddReport(report);
            }
            ;

            return(outSample);
        }
Example #2
0
        public static SampleValue Equilibrate(Env env, Symbol outSymbol, SampleValue inSample, Noise noise, double fortime, Netlist netlist, Style style)
        {
            inSample.CheckConsumed(style); // we will consume it later, but we need to check now
            double initialTime = 0.0;
            double finalTime   = fortime;

            string sampleName = (outSymbol.Raw() == "vessel") ? "" : "Sample " + inSample.FormatSymbol(style);

            KChartHandler.ChartClear(sampleName, "s", "M", style);

            List <SpeciesValue> inSpecies = inSample.stateMap.species;
            State initialState            = inSample.stateMap.state;

            if ((noise == Noise.None) && initialState.lna)
            {
                initialState = new State(initialState.size, lna: false).InitMeans(initialState.MeanVector());
            }
            if ((noise != Noise.None) && !initialState.lna)
            {
                initialState = new State(initialState.size, lna: true).InitMeans(initialState.MeanVector());
            }
            List <ReactionValue> reactions = inSample.RelevantReactions(netlist, style);
            CRN crn = new CRN(inSample, reactions, precomputeLNA: (noise != Noise.None) && KControls.precomputeLNA);

            KChartHandler.SetMeanFlowDictionary(crn.MeanFlowDictionary(), style);
            // List<ReportEntry> reports = netlist.Reports(inSpecies);
            List <ReportEntry> reports = inSample.RelevantReports(style);

            Exec.lastExecution.lastCRN = crn; KGui.gui.GuiOutputSetText(crn.FormatNice(style));
            Exec.lastExecution.ResetGraphCache();

            Func <double, double, Vector, Func <double, Vector, Vector>, IEnumerable <SolPoint> > Solver;

            if (KControls.solver == "GearBDF")
            {
                Solver = Ode.GearBDF;
            }
            else if (KControls.solver == "RK547M")
            {
                Solver = Ode.RK547M;
            }
            else
            {
                throw new Error("No solver");
            }

            Func <double, Vector, Vector> Flux;

            if (noise != Noise.None)
            {
                Flux = (t, x) => crn.LNAFlux(t, x, style);
            }
            else
            {
                Flux = (t, x) => crn.Flux(t, x, style);
            }

            bool nonTrivialSolution =
                (inSpecies.Count > 0) &&  // we don't want to run on the empty species list: Oslo crashes
                (!crn.Trivial(style)) &&  // we don't want to run trivial ODEs: some Oslo solvers hang on very small stepping
                finalTime > 0;            // we don't want to run when fortime==0

            // INTEGRATE
            (double lastTime, State lastState) =
                Integrate(Solver, initialState, initialTime, finalTime, Flux, inSample, reports, noise, nonTrivialSolution, style);

            if (lastState == null)
            {
                lastState = initialState.Clone();
            }
            lastState = lastState.Positive();
            List <SpeciesValue> outSpecies = new List <SpeciesValue> {
            }; foreach (SpeciesValue sp in inSpecies)
            {
                outSpecies.Add(sp);                                                                                                // the species list may be destructively modified (added to) later in the new sample
            }
            SampleValue outSample = new SampleValue(outSymbol, new StateMap(outSymbol, outSpecies, lastState), new NumberValue(inSample.Volume()), new NumberValue(inSample.Temperature()), produced: true);

            outSample.AddReports(inSample.RelevantReports(style));

            foreach (ReportEntry report in reports)
            {
                // an equilibrate may pick up the reports of a previous equilibrate, so we reassign the report even if it has already been assigned
                // this does not really affect lexical binding because a second report with the same name will get a new symbol
                // P.S. this was changed so that an equilibrate no longer picks up reports of previous equilibrate, so the issue should not arise
                if (report.timecourse != null)
                {
                    env.AssignValue(report.timecourse, KChartHandler.ToTimecourse(report.timecourse, report.flow, style), reassign: true);
                }
            }

            inSample.Consume(reactions, lastTime, lastState, netlist, style);
            return(outSample);
        }