public void TestTimeSplit()
{
var ratings = new TimedRatings();
ratings.Add(0, 0, 5.0f, new DateTime(2011, 10, 31));
ratings.Add(0, 1, 4.5f, new DateTime(2011, 11, 1));
ratings.Add(1, 0, 1.0f, new DateTime(2011, 10, 31));
ratings.Add(1, 1, 2.5f, new DateTime(2011, 11, 2));
var split1 = new RatingsChronologicalSplit(ratings, new DateTime(2011, 11, 2));
Assert.AreEqual(3, split1.Train[0].Count);
Assert.AreEqual(1, split1.Test[0].Count);
Assert.AreEqual(2, split1.Train[0].ByUser[0].Count);
Assert.AreEqual(1, split1.Train[0].ByUser[1].Count);
Assert.AreEqual(0, split1.Test[0].ByUser[0].Count);
Assert.AreEqual(1, split1.Test[0].ByUser[1].Count);
Assert.AreEqual(new DateTime(2011, 10, 31), split1.Train[0].EarliestTime);
Assert.AreEqual(new DateTime(2011, 11, 1), split1.Train[0].LatestTime);
Assert.AreEqual(new DateTime(2011, 11, 2), split1.Test[0].EarliestTime);
Assert.AreEqual(new DateTime(2011, 11, 2), split1.Test[0].LatestTime);
var split2 = new RatingsChronologicalSplit(ratings, new DateTime(2011, 11, 1));
Assert.AreEqual(2, split2.Train[0].Count);
Assert.AreEqual(2, split2.Test[0].Count);
Assert.AreEqual(1, split2.Train[0].ByUser[0].Count);
Assert.AreEqual(1, split2.Train[0].ByUser[1].Count);
Assert.AreEqual(1, split2.Test[0].ByUser[0].Count);
Assert.AreEqual(1, split2.Test[0].ByUser[1].Count);
Assert.AreEqual(new DateTime(2011, 10, 31), split2.Train[0].EarliestTime);
Assert.AreEqual(new DateTime(2011, 10, 31), split2.Train[0].LatestTime);
Assert.AreEqual(new DateTime(2011, 11, 1), split2.Test[0].EarliestTime);
Assert.AreEqual(new DateTime(2011, 11, 2), split2.Test[0].LatestTime);
}
public void TestTimeSplit()
{
var ratings = new TimedRatings();
ratings.Add(0, 0, 5.0f, new DateTime(2011, 10, 31));
ratings.Add(0, 1, 4.5f, new DateTime(2011, 11, 1));
ratings.Add(1, 0, 1.0f, new DateTime(2011, 10, 31));
ratings.Add(1, 1, 2.5f, new DateTime(2011, 11, 2));
var split1 = new RatingsChronologicalSplit(ratings, new DateTime(2011, 11, 2));
Assert.AreEqual(3, split1.Train[0].Count);
Assert.AreEqual(1, split1.Test[0].Count);
Assert.AreEqual(2, split1.Train[0].ByUser[0].Count);
Assert.AreEqual(1, split1.Train[0].ByUser[1].Count);
Assert.AreEqual(0, split1.Test[0].ByUser[0].Count);
Assert.AreEqual(1, split1.Test[0].ByUser[1].Count);
Assert.AreEqual(new DateTime(2011, 10, 31), split1.Train[0].EarliestTime);
Assert.AreEqual(new DateTime(2011, 11, 1), split1.Train[0].LatestTime);
Assert.AreEqual(new DateTime(2011, 11, 2), split1.Test[0].EarliestTime);
Assert.AreEqual(new DateTime(2011, 11, 2), split1.Test[0].LatestTime);
var split2 = new RatingsChronologicalSplit(ratings, new DateTime(2011, 11, 1));
Assert.AreEqual(2, split2.Train[0].Count);
Assert.AreEqual(2, split2.Test[0].Count);
Assert.AreEqual(1, split2.Train[0].ByUser[0].Count);
Assert.AreEqual(1, split2.Train[0].ByUser[1].Count);
Assert.AreEqual(1, split2.Test[0].ByUser[0].Count);
Assert.AreEqual(1, split2.Test[0].ByUser[1].Count);
Assert.AreEqual(new DateTime(2011, 10, 31), split2.Train[0].EarliestTime);
Assert.AreEqual(new DateTime(2011, 10, 31), split2.Train[0].LatestTime);
Assert.AreEqual(new DateTime(2011, 11, 1), split2.Test[0].EarliestTime);
Assert.AreEqual(new DateTime(2011, 11, 2), split2.Test[0].LatestTime);
}
