public void SolveHalfTime(DataSet data, int iterations)
{
//define constants
this.data = data;
this.param = new Microsoft.SolverFoundation.Solvers.NelderMeadSolverParams();
int[] constants;
//Solver
solver = new Microsoft.SolverFoundation.Solvers.NelderMeadSolver();
// Objective function.
int objId;
solver.AddRow("obj", out objId);
solver.AddGoal(objId, 0, true);
// Define variables.
constants = new int[1];
for (int i = 0; i < data.Variables.Count; i++)
{
if (data.Variables[i].ConstName == "T1/2")
{
solver.AddVariable(data.Variables[i].ConstName, out constants[0]);
solver.SetLowerBound(constants[0], data.XVals[0]);
solver.SetUpperBound(constants[0], data.XVals[data.XVals.Length - 1]);
solver.SetValue(constants[0], 0);
break;
}
}
// Assign objective function delegate.
solver.FunctionEvaluator = FunctionValueHalfTime;
// Solve.
param.IterationLimit = iterations;
var solution = solver.Solve(param);
for (int i = 0; i < data.Variables.Count; i++)
{
if (data.Variables[i].ConstName == "T1/2")
{
data.Variables[i].ConstValue = solution.GetValue(constants[0]);
break;
}
}
}
public double SolveHalfTime(Expression e, int iterations, double start, double stop, double half, double value)
{
try
{
this.e = e;
this.half = half;
//define constants
this.param = new Microsoft.SolverFoundation.Solvers.NelderMeadSolverParams();
int[] constants;
//Solver
solver = new Microsoft.SolverFoundation.Solvers.NelderMeadSolver();
// Objective function.
int objId;
solver.AddRow("obj", out objId);
solver.AddGoal(objId, 0, true);
// Define variables.
constants = new int[1];
solver.AddVariable("t", out constants[0]);
solver.SetLowerBound(constants[0], start);
solver.SetUpperBound(constants[0], stop);
solver.SetValue(constants[0], value);
// Assign objective function delegate.
solver.FunctionEvaluator = FunctionValueHalfTime;
// Solve.
param.IterationLimit = iterations;
var solution = solver.Solve(param);
return(solution.GetValue(constants[0]));
}
catch
{
return(value);
}
}