public void StartModelPreyOnly()
{
this.initializeClassVariables();
this.predatorResults = new ModelResults();
this.preyResults = new ModelResults();
float preyLotkaVolterra = 0;
float changeInPopulation = 0;
timeSeries[0] = 0;
preyPopulationSizeOverTime[0] = this.preyInitialParameters.InitialPopulationSize;
predatorPopulationSizeOverTime[0] = this.predatorInitialParameters.InitialPopulationSize;
preyGrowthRateOverTime[0] = 0;
predatorGrowthRateOverTime[0] = 0;
for (int iteration = 1; iteration < numberofIterationsToRun; iteration++)
{
timeSeries[iteration] = iteration * this.preyInitialParameters.TimeIncrement;
timeSeries[iteration] = iteration * this.predatorInitialParameters.TimeIncrement;
System.Collections.Hashtable lotkavolterra = new System.Collections.Hashtable();
lotkavolterra.Add("preybirthrate", this.preyInitialParameters.BirthFraction);
lotkavolterra.Add("preypopulation", preyPopulationSizeOverTime[iteration - 1]);
lotkavolterra.Add("preydeathrate", this.preyInitialParameters.DeathPropotionalityScore);
lotkavolterra.Add("predatorpopulation", predatorPopulationSizeOverTime[iteration - 1]);
lotkavolterra.Add("predatorbirthrate", this.predatorInitialParameters.BirthFraction);
lotkavolterra.Add("predatordeathrate", this.predatorInitialParameters.DeathPropotionalityScore);
preyLotkaVolterra = this.preyChangeInPopulationWithCarryingCapacity(this.preyInitialParameters, lotkavolterra);
changeInPopulation = preyPopulationSizeOverTime[iteration - 1] + (preyLotkaVolterra * this.preyInitialParameters.TimeIncrement);
if (changeInPopulation < (float)0)
{
preyPopulationSizeOverTime[iteration] = (float)0;
}
else
{
preyPopulationSizeOverTime[iteration] = changeInPopulation;
}
preyGrowthRateOverTime[iteration] = this.growthRate(preyPopulationSizeOverTime, iteration);
predatorPopulationSizeOverTime[iteration] = this.predatorInitialParameters.InitialPopulationSize;
predatorGrowthRateOverTime[iteration] = this.growthRate(predatorPopulationSizeOverTime, iteration);
}
this.preyResults.TimeSeries = timeSeries;
this.preyResults.PopulationGrowthOverTime = preyPopulationSizeOverTime;
this.preyResults.GrowthRateOverTime = preyGrowthRateOverTime;
this.predatorResults.TimeSeries = timeSeries;
this.predatorResults.PopulationGrowthOverTime = predatorPopulationSizeOverTime;
this.predatorResults.GrowthRateOverTime = predatorGrowthRateOverTime;
}
private void initializeClassLevelVariables()
{
this.numberofIterationsToRun = this.numberOfIterations();
this.timeSeries = new float[this.numberofIterationsToRun];
this.susceptablePopulationSizeOverTime = new float[this.numberofIterationsToRun];
this.infectedPopulationSizeOverTime = new float[this.numberofIterationsToRun];
this.removedPopulationSizeOverTime = new float[this.numberofIterationsToRun];
this.susceptableIndividualsResults = new ModelResults();
this.infectedIndividualsResults = new ModelResults();
this.removedIndividualsResults = new ModelResults();
}
public void StartModel()
{
this.results = new ModelResults();
int numberofIterationsToRun = this.numberOfIterations();
float[] timeSeries = new float[numberofIterationsToRun];
float[] populationSizeOverTime = new float[numberofIterationsToRun];
timeSeries[0] = 0;
populationSizeOverTime[0] = this.initialparams.InitialPopulationSize;
for (int iteration = 1; iteration < numberofIterationsToRun; iteration++)
{
timeSeries[iteration] = iteration * this.initialparams.TimeIncrement;
populationSizeOverTime[iteration] = populationSizeOverTime[iteration - 1] + this.growth(populationSizeOverTime[iteration - 1]);
}
this.results.TimeSeries = timeSeries;
this.results.PopulationGrowthOverTime = populationSizeOverTime;
}
public void StartModel()
{
this.competitorOneResults = new ModelResults();
this.competitorTwoResults = new ModelResults();
float competitorOneDeaths;
float competitorTwoDeaths;
float competitorOneBirths;
float competitorTwoBirths;
int numberofIterationsToRun = this.numberOfIterations();
float[] timeSeries = new float[numberofIterationsToRun];
float[] competitorOnePopulationSizeOverTime = new float[numberofIterationsToRun];
float[] competitorTwoPopulationSizeOverTime = new float[numberofIterationsToRun];
timeSeries[0] = 0;
competitorOnePopulationSizeOverTime[0] = this.competitorOneInitialParameters.InitialPopulationSize;
competitorTwoPopulationSizeOverTime[0] = this.competitorTwoInitialParameters.InitialPopulationSize;
for (int iteration = 1; iteration < numberofIterationsToRun; iteration++)
{
timeSeries[iteration] = iteration * this.competitorOneInitialParameters.TimeIncrement;
competitorOneDeaths = this.deaths(competitorTwoPopulationSizeOverTime[iteration - 1], this.competitorOneInitialParameters) * competitorOnePopulationSizeOverTime[iteration - 1];
competitorTwoDeaths = this.deaths(competitorOnePopulationSizeOverTime[iteration - 1], this.competitorTwoInitialParameters) * competitorTwoPopulationSizeOverTime[iteration - 1];
competitorOneBirths = this.births(competitorOnePopulationSizeOverTime[iteration - 1], competitorOneInitialParameters);
competitorTwoBirths = this.births(competitorTwoPopulationSizeOverTime[iteration - 1], competitorTwoInitialParameters);
competitorOnePopulationSizeOverTime[iteration] = competitorOnePopulationSizeOverTime[iteration - 1] + ((competitorOneBirths - competitorOneDeaths) * this.competitorOneInitialParameters.TimeIncrement);
competitorTwoPopulationSizeOverTime[iteration] = competitorTwoPopulationSizeOverTime[iteration - 1] + ((competitorTwoBirths - competitorTwoDeaths) * this.competitorOneInitialParameters.TimeIncrement);
}
this.competitorOneResults.TimeSeries = timeSeries;
this.competitorOneResults.PopulationGrowthOverTime = competitorOnePopulationSizeOverTime;
this.competitorTwoResults.TimeSeries = timeSeries;
this.competitorTwoResults.PopulationGrowthOverTime = competitorTwoPopulationSizeOverTime;
}
