source: branches/2645_ContextAlgorithms/HeuristicLab.Problems.DataAnalysis/3.4/Interfaces/IDataset.cs

#region License Information
/* HeuristicLab
 * Copyright (C) 2002-2018 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
 *
 * This file is part of HeuristicLab.
 *
 * HeuristicLab is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * HeuristicLab is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
 */
#endregion

using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using HeuristicLab.Core;
using HeuristicLab.Data;

namespace HeuristicLab.Problems.DataAnalysis {
  public interface IDataset : IItem, IStringConvertibleMatrix {
    IEnumerable<string> VariableNames { get; }
    IEnumerable<string> DoubleVariables { get; }
    IEnumerable<string> StringVariables { get; }
    IEnumerable<string> DateTimeVariables { get; }

    bool VariableHasType<T>(string variableName);

    double GetDoubleValue(string variableName, int row);
    IEnumerable<double> GetDoubleValues(string variableName);
    IEnumerable<double> GetDoubleValues(string variableName, IEnumerable<int> rows);
    ReadOnlyCollection<double> GetReadOnlyDoubleValues(string variableName);

    string GetStringValue(string variableName, int row);
    IEnumerable<string> GetStringValues(string variableName);
    IEnumerable<string> GetStringValues(string variableName, IEnumerable<int> rows);
    ReadOnlyCollection<string> GetReadOnlyStringValues(string VariableName);

    System.DateTime GetDateTimeValue(string variableName, int row);
    IEnumerable<DateTime> GetDateTimeValues(string variableName);
    IEnumerable<DateTime> GetDateTimeValues(string variableName, IEnumerable<int> rows);
    ReadOnlyCollection<DateTime> GetReadOnlyDateTimeValues(string variableName);
  }
}