/// <summary>
/// Normalize a row vector using Z-Score normalization on the supplied feature properties.
/// </summary>
/// <param name="row"></param>
/// <param name="properties"></param>
/// <returns></returns>
public Vector Normalize(Vector row, Summary properties)
{
if (row == null)
{
throw new ArgumentNullException("Row was null");
}
double[] item = new double[row.Length];
for (int i = 0; i < row.Length; i++)
{
item[i] = (row[i] - properties.Average[i]);
}
return item;
}
/// <summary>
/// Converts the state vector into an MDP state.
/// </summary>
/// <param name="state">State vector.</param>
/// <param name="summary">Feature properties from the original set.</param>
/// <param name="discretizer">Discretization function for generating unique state identifiers.</param>
/// <returns>MDPState.</returns>
public static MDPState GetState(Vector state, Summary summary, IDiscretizer discretizer)
{
return new MDPState((int)discretizer.Discretize(state, summary)) { Features = state };
}