public static MembershipFunction CreateConstant(float refPoint)
{
MembershipFunction result = new MembershipFunction();
result.Type = MFtype.constant;
result.Params[0] = refPoint;
return(result);
}
/// <summary>
/// Returns a triangle MF generated using the given parameters
/// </summary>
/// <param name="referencePoint">The tip of the triangle</param>
/// <returns></returns>
public static MembershipFunction CreateTriangle(float referencePoint, float bottomSize)
{
// Initialize
MembershipFunction result = new MembershipFunction();
// Set data
result.Type = MFtype.trimf;
// Set coordinates
result.Params[0] = referencePoint + bottomSize * 0.5f;
result.Params[1] = referencePoint;
result.Params[2] = referencePoint + bottomSize * 0.5f;
// Set values
result.Values[0] = 0.0f;
result.Values[1] = 1.0f;
result.Values[2] = 0.0f;
// Return result
return(result);
}
/// <summary>
/// Automatically generate equal sized trapezoid MF-s for each MF.
/// </summary>
/// <param name="baseRatio">bigger(bottom) base * baseRatio = smaller(top) base</param>
/// <param name="input">bigger(bottom) base * baseRatio = smaller(top) base</param>
/// <param name="output">bigger(bottom) base * baseRatio = smaller(top) base</param>
public void GenerateTrapezoidMFs(float baseRatio = 1.0f / 3.0f, bool input = true, bool output = true)
{
// Create input MFs
if (input)
{
for (int i = 0; i < NumInputs; i++)
{
// calculate the steps at which we make steps between the specified trapeze points:
// (total range) / (2 * NumMF - 1)
float stepSize = (Inputs[i].Range[1] - Inputs[i].Range[0]) / (2.0f * Inputs[i].NumMFs - 1.0f);
// create the trapeze shapes
for (int j = 0; j < Inputs[i].NumMFs; j++)
{
Inputs[i].MFs[j] = MembershipFunction.CreateTrapezoid(Inputs[i].Range[0] + stepSize * (j * 2 - 1 + 1.5f), stepSize * 3.0f, stepSize * 3.0f * baseRatio);
}
}
}
if (output)
{
// Create output MFs
for (int i = 0; i < NumOutputs; i++)
{
// calculate the steps at which we make steps between the specified trapeze points:
// (total range) / (2 * NumMF - 1)
float stepSize = (Outputs[i].Range[1] - Outputs[i].Range[0]) / (2.0f * Outputs[i].NumMFs - 1.0f);
// create the trapeze shapes
for (int j = 0; j < Outputs[i].NumMFs; j++)
{
Outputs[i].MFs[j] = MembershipFunction.CreateTrapezoid(Outputs[i].Range[0] + stepSize * (j * 2 - 1 + 1.5f), stepSize * 3.0f, stepSize * 3.0f * baseRatio);
}
}
}
}
static void Main(string[] args)
{
//input memebership function creation
Region very_cold = create_region("very cold", 0.0, 0.0, 60.0, 1.0, 65.0, 0.0, true, false);
Region cold = create_region("cold", 60.0, 0.0, 65.0, 1.0, 70.0, 0.0, false, false);
Region warm = create_region("warm", 65.0, 0.0, 70.0, 1.0, 75.0, 0.0, false, false);
Region hot = create_region("hot", 70.0, 0.0, 75.0, 1.0, 80.0, 0.0, false, false);
Region very_hot = create_region("very hot", 75.0, 0.0, 80.0, 1.0, 0.0, 0.0, false, true);
MembershipFunction temp = new MembershipFunction(very_cold, cold, warm, hot, very_hot);
// output memebership function creation
string[] regions = { "hi cool", "cool", "no change", "heat", "hi heat" };
Region hicool = create_region("hi cool", 0.0, 0.0, -100.0, 1.0, -50.0, 0.0, true, false);
Region cool = create_region("cool", -50.25, 0.0, -50.0, 1.0, -1.0, 0.0, false, false);
Region no_change = create_region("no change", -1.0, 0.0, 0.0, 1.0, 1.0, 0.0, false, false);
Region heat = create_region("heat", 1.0, 0.0, 50.0, 1.0, 50.25, 0.0, false, false);
Region hiheat = create_region("hi heat", 50.0, 0.0, 100.0, 1.0, 0.0, 0.0, false, true);
MembershipFunction heat_cool = new MembershipFunction(hicool, cool, no_change, heat, hiheat);
// get user input
bool cont = true;
while (cont)
{
double current_temp = 0;
double target_temp = 0;
bool current_flag = false;
bool target_flag = false;
while (!current_flag)
{
Console.WriteLine("Please Enter a current temperature (ex. 75.0)");
current_flag = Double.TryParse(Console.ReadLine(), out current_temp);
}
while (!target_flag)
{
Console.WriteLine("Please Enter a target temperature (ex. 75.0)");
target_flag = Double.TryParse(Console.ReadLine(), out target_temp);
}
FuzzySet current_fuzz = new FuzzySet();
FuzzySet target_fuzz = new FuzzySet();
current_fuzz = temp.EvalMembership(current_temp, "y");
target_fuzz = temp.EvalMembership(target_temp, "y");
FuzzySet output = new FuzzySet();
output = output.BaseRules(target_fuzz, current_fuzz);
string result = heat_cool.defuzzify(output);
Console.WriteLine(result);
Console.WriteLine("would you like to run another execution y/n");
char cont_char = Convert.ToChar(Console.ReadLine());
if (cont_char == 'y')
{
cont = true;
}
else
{
cont = false;
}
}
}