//
// Encog(tm) Core v3.3 - .Net Version
// http://www.heatonresearch.com/encog/
//
// Copyright 2008-2014 Heaton Research, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//  http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//   
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using Encog.App.Analyst.Script.Normalize;

namespace Encog.App.Analyst.Missing
{
    /// <summary>
    ///     Defines a method for dealing with missing values.
    /// </summary>
    public interface IHandleMissingValues
    {
        /// <summary>
        ///     Handle the missing values for a column.
        /// </summary>
        /// <param name="analyst">The analyst to use.</param>
        /// <param name="stat">The column we are handling missing values for.</param>
        /// <returns>Null if the row should be skipped, otherwise the list of values.</returns>
        double[] HandleMissing(EncogAnalyst analyst, AnalystField stat);
    }
}
