/// <summary>
/// Generates and populates Ranges from all provided Parameters.
/// </summary>
/// <returns>A copy of itself to facilitate chaining.</returns>
public Configuration PopulateParameterRanges()
{
// Loop through all Parameters, adding either a normal stepped range or a product range
foreach (KeyValuePair <string, Parameter> entry in Parameters)
{
if (entry.Value.Step != null)
{
ParameterRanges.Add(entry.Key, EnumerableUtils.SteppedRange(entry.Value.Start, entry.Value.End, (double)entry.Value.Step));
}
else if (entry.Value.Factor != null)
{
ParameterRanges.Add(entry.Key, EnumerableUtils.ProductRange(entry.Value.Start, entry.Value.End, (double)entry.Value.Factor));
}
}
return(this);
}
/// <summary>
/// Inheritors of this class should specify how to get actual values for the parameters
/// given a index vector in the grid-search space. Those indices indicate which values
/// should be given, e.g. if there are two parameters in the problem, the ranges of the
/// first parameter are {10, 20, 30}, and the ranges of the second parameter are {0.1, 0.01, 0.001 },
/// if the index vector is { 1, 2 } this method should return { 20, 0.001 }.
/// </summary>
///
/// <param name="indices">The indices in grid-search space.</param>
///
/// <returns>The parameters at the location indicated by <paramref name="indices"/>.</returns>
///
protected override TRange GetParameters(int[] indices)
{
var ranges = new List <IGridSearchRange>();
foreach (PropertyInfo property in ParameterRanges.GetType().GetProperties())
{
var p = (IGridSearchRange)property.GetValue(ParameterRanges);
ranges.Add((IGridSearchRange)p.Clone());
}
for (int j = 0; j < indices.Length; j++)
{
ranges[j].Index = indices[j];
}
return((TRange)Activator.CreateInstance(ParameterRanges.GetType(), ranges.ToArray()));
}
/// <summary>
/// Inheritors of this class should return the number of possible parameter values for
/// each parameter in the grid-search range. For example, if a problem should search
/// parameters in the range {0, 1, ... 9} (10 values) and {-1, -2, -3 } (3 values), this
/// method should return { 10, 3 }.
/// </summary>
///
/// <returns>The number of possibilities for each parameter.</returns>
///
protected override int[] GetLengths()
{
List <int> lengths = new List <int>();
foreach (PropertyInfo property in ParameterRanges.GetType().GetProperties())
{
Type expected = typeof(GridSearchRange <object>).GetGenericTypeDefinition();
Type actual = property.PropertyType.GetGenericTypeDefinition();
if (actual != expected)
{
throw new Exception();
}
var p = (IGridSearchRange)property.GetValue(ParameterRanges);
lengths.Add(p.Length);
}
return(lengths.ToArray());
}
private void GetAdditionalData()
{
AdditionalParameterData = new object[Overload.Parameters.Length];
for (int i = 0; i < Overload.Parameters.Length; i++)
{
AdditionalParameterData[i] = Overload.Parameters[i].Validate(parseInfo, Values[i], ParameterRanges.ElementAtOrDefault(i));
}
}
