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TestDataManipulation.cs
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TestDataManipulation.cs
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// See the LICENSE file in the project root for more information.
using Microsoft.VisualStudio.TestTools.UnitTesting;
using System;
using System.Collections.Generic;
using System.Linq;
using System.IO;
using Microsoft.ML.Runtime.Data;
using Scikit.ML.DataFrame;
using Microsoft.ML.Runtime.Api;
using Microsoft.ML.Trainers;
using Microsoft.ML.Transforms;
namespace UnitTests
{
[TestClass]
public class TestDataManipulation
{
#region DataFrame IO
[TestMethod]
public void TestReadCsvSimple()
{
var iris = FileHelper.GetTestFile("iris.txt");
var df = DataFrame.ReadCsv(iris, sep: '\t');
Assert.AreEqual(df.Shape, new Tuple<int, int>(150, 5));
var sch = df.Schema;
Assert.AreEqual(sch.GetColumnName(0), "Label");
Assert.AreEqual(sch.GetColumnName(1), "Sepal_length");
Assert.AreEqual(sch.GetColumnType(0), NumberType.I4);
Assert.AreEqual(sch.GetColumnType(1), NumberType.R4);
Assert.AreEqual(df.iloc[0, 0], (DvInt4)0);
Assert.AreEqual(df.iloc[1, 0], (DvInt4)0);
Assert.AreEqual(df.iloc[140, 0], (DvInt4)2);
df.iloc[1, 0] = (DvInt4)10;
Assert.AreEqual(df.iloc[1, 0], (DvInt4)10);
df.loc[1, "Label"] = (DvInt4)11;
Assert.AreEqual(df.loc[1, "Label"], (DvInt4)11);
var d = df[1];
Assert.AreEqual(d.Count, 5);
Assert.AreEqual(d["Label"], (DvInt4)11);
var col = df["Label"];
Assert.AreEqual(col.Length, 150);
df["Label2"] = df["Label"];
col = df["Label2"];
Assert.AreEqual(col.Length, 150);
Assert.AreEqual(df.loc[1, "Label2"], (DvInt4)11);
Assert.AreEqual(df.Shape, new Tuple<int, int>(150, 6));
}
[TestMethod]
public void TestReadView()
{
var env = EnvHelper.NewTestEnvironment(conc: 1);
var iris = FileHelper.GetTestFile("iris.txt");
var loader = DataFrame.ReadCsvToTextLoader(iris, sep: '\t', host: env.Register("TextLoader"));
var df = DataFrame.ReadView(loader);
Assert.AreEqual(df.Shape, new Tuple<int, int>(150, 5));
var sch = df.Schema;
Assert.AreEqual(sch.GetColumnName(0), "Label");
Assert.AreEqual(sch.GetColumnName(1), "Sepal_length");
Assert.AreEqual(sch.GetColumnType(0), NumberType.I4);
Assert.AreEqual(sch.GetColumnType(1), NumberType.R4);
Assert.AreEqual(df.iloc[0, 0], (DvInt4)0);
Assert.AreEqual(df.iloc[1, 0], (DvInt4)0);
Assert.AreEqual(df.iloc[140, 0], (DvInt4)2);
}
[TestMethod]
public void TestReadViewEqual()
{
var iris = FileHelper.GetTestFile("iris.txt");
var loader = DataFrame.ReadCsvToTextLoader(iris, sep: '\t');
var df1 = DataFrame.ReadCsv(iris, sep: '\t');
var df2 = DataFrame.ReadView(loader);
Assert.IsTrue(df1 == df2);
df2.iloc[1, 0] = (DvInt4)10;
Assert.IsTrue(df1 != df2);
}
[TestMethod]
public void TestReadTextLoaderSimple()
{
var iris = FileHelper.GetTestFile("iris.txt");
var loader = DataFrame.ReadCsvToTextLoader(iris, sep: '\t');
var sch = loader.Schema;
Assert.AreEqual(sch.ColumnCount, 5);
Assert.AreEqual(sch.GetColumnName(0), "Label");
Assert.AreEqual(sch.GetColumnName(1), "Sepal_length");
}
[TestMethod]
public void TestReadToCsv()
{
var methodName = System.Reflection.MethodBase.GetCurrentMethod().Name;
var iris = FileHelper.GetTestFile("iris.txt");
var df = DataFrame.ReadCsv(iris, sep: '\t');
var outfile = FileHelper.GetOutputFile("iris_copy.txt", methodName);
df.ToCsv(outfile);
Assert.IsTrue(File.Exists(outfile));
}
[TestMethod]
public void TestReadStr()
{
var iris = FileHelper.GetTestFile("iris.txt");
var df1 = DataFrame.ReadCsv(iris, sep: '\t');
var content = File.ReadAllText(iris);
var df2 = DataFrame.ReadStr(content, sep: '\t');
Assert.IsTrue(df1 == df2);
}
[TestMethod]
public void TestReadStrIndex()
{
var text = "AA,BB,CC\n0,1,text\n1,1.1,text2";
var df = DataFrame.ReadStr(text, index: true);
var tos = df.ToString();
var exp = "index,AA,BB,CC\n0,0,1,text\n1,1,1.1,text2";
Assert.AreEqual(exp, tos);
}
#endregion
#region DataFrame ML
[TestMethod]
public void TestDataFrameScoringMulti()
{
var env = EnvHelper.NewTestEnvironment(conc: 1);
var iris = FileHelper.GetTestFile("iris.txt");
var df = DataFrame.ReadCsv(iris, sep: '\t', dtypes: new DataKind?[] { DataKind.R4 });
var conc = env.CreateTransform("Concat{col=Feature:Sepal_length,Sepal_width}", df);
var trainingData = env.CreateExamples(conc, "Feature", label: "Label");
var trainer = env.CreateTrainer("ova{p=lr}");
using (var ch = env.Start("test"))
{
var pred = trainer.Train(env, ch, trainingData);
var scorer = trainer.GetScorer(pred, trainingData, env, null);
var predictions = DataFrame.ReadView(scorer);
var v = predictions.iloc[0, 7];
Assert.AreEqual(v, (uint)1);
Assert.AreEqual(predictions.Schema.GetColumnName(5), "Feature.0");
Assert.AreEqual(predictions.Schema.GetColumnName(6), "Feature.1");
Assert.AreEqual(predictions.Schema.GetColumnName(7), "PredictedLabel");
Assert.AreEqual(predictions.Shape, new Tuple<int, int>(150, 11));
ch.Done();
}
}
[TestMethod]
public void TestDataFrameScoringBinary()
{
var env = EnvHelper.NewTestEnvironment(conc: 1);
var iris = FileHelper.GetTestFile("iris.txt");
var df = DataFrame.ReadCsv(iris, sep: '\t', dtypes: new DataKind?[] { DataKind.R4 });
var conc = env.CreateTransform("Concat{col=Feature:Sepal_length,Sepal_width}", df);
var trainingData = env.CreateExamples(conc, "Feature", label: "Label");
var trainer = env.CreateTrainer("lr");
using (var ch = env.Start("test"))
{
var pred = trainer.Train(env, ch, trainingData);
var scorer = trainer.GetScorer(pred, trainingData, env, null);
var predictions = DataFrame.ReadView(scorer);
var v = predictions.iloc[0, 7];
Assert.AreEqual(v, DvBool.False);
Assert.AreEqual(predictions.Schema.GetColumnName(5), "Feature.0");
Assert.AreEqual(predictions.Schema.GetColumnName(6), "Feature.1");
Assert.AreEqual(predictions.Schema.GetColumnName(7), "PredictedLabel");
Assert.AreEqual(predictions.Shape, new Tuple<int, int>(150, 10));
ch.Done();
}
}
[TestMethod]
public void TestDataFrameScoringMultiEntryPoints2()
{
var iris = FileHelper.GetTestFile("iris.txt");
var df = DataFrame.ReadCsv(iris, sep: '\t', dtypes: new DataKind?[] { DataKind.R4 });
var importData = df.EPTextLoader(iris, sep: '\t', header: true);
var learningPipeline = new GenericLearningPipeline(conc: 1);
learningPipeline.Add(importData);
learningPipeline.Add(new ColumnConcatenator("Features", "Sepal_length", "Sepal_width"));
learningPipeline.Add(new StochasticDualCoordinateAscentRegressor());
var predictor = learningPipeline.Train();
var predictions = predictor.Predict(df);
var dfout = DataFrame.ReadView(predictions);
Assert.AreEqual(dfout.Shape, new Tuple<int, int>(150, 8));
}
#endregion
#region DataFrame Operators
[TestMethod]
public void TestDataFrameOperation()
{
var text = "AA,BB,CC\n0,1,text\n1,1.1,text2";
var df = DataFrame.ReadStr(text);
var tos = df.ToString();
Assert.AreEqual(text, tos);
Assert.AreEqual(df.Shape, new Tuple<int, int>(2, 3));
df["BBxBB"] = df["AA"] + df["BB"];
Assert.AreEqual(df.Shape, new Tuple<int, int>(2, 4));
Assert.AreEqual(df.iloc[0, 3], 1f);
Assert.AreEqual(df.iloc[1, 3], 2.1f);
df["BBxBB2"] = df["BB"] + df["AA"];
Assert.AreEqual(df.Shape, new Tuple<int, int>(2, 5));
Assert.AreEqual(df.iloc[0, 4], 1f);
Assert.AreEqual(df.iloc[1, 4], 2.1f);
df["AA2"] = df["AA"] + 10;
Assert.AreEqual(df.Shape, new Tuple<int, int>(2, 6));
Assert.AreEqual(df.iloc[0, 5], (DvInt4)10);
Assert.AreEqual(df.iloc[1, 5], (DvInt4)11);
df["CC2"] = df["CC"] + "10";
Assert.AreEqual(df.Shape, new Tuple<int, int>(2, 7));
Assert.AreEqual(df.iloc[0, 6].ToString(), "text10");
Assert.AreEqual(df.iloc[1, 6].ToString(), "text210");
}
[TestMethod]
public void TestDataFrameOpMult()
{
var text = "AA,BB,CC\n0,1,text\n1,1.1,text2";
var df = DataFrame.ReadStr(text);
var tos = df.ToString();
Assert.AreEqual(text, tos);
Assert.AreEqual(df.Shape, new Tuple<int, int>(2, 3));
df["BB*BB"] = df["AA"] * df["BB"];
Assert.AreEqual(df.Shape, new Tuple<int, int>(2, 4));
Assert.AreEqual(df.iloc[0, 3], 0f);
Assert.AreEqual(df.iloc[1, 3], 1.1f);
df["AA2"] = df["AA"] * 10;
Assert.AreEqual(df.Shape, new Tuple<int, int>(2, 5));
Assert.AreEqual(df.iloc[0, 4], (DvInt4)0);
Assert.AreEqual(df.iloc[1, 4], (DvInt4)10);
}
[TestMethod]
public void TestDataFrameOpMinus()
{
var text = "AA,BB,CC\n0,1,text\n1,1.1,text2";
var df = DataFrame.ReadStr(text);
var tos = df.ToString();
Assert.AreEqual(text, tos);
Assert.AreEqual(df.Shape, new Tuple<int, int>(2, 3));
df["BB*BB"] = df["AA"] - df["BB"];
Assert.AreEqual(df.Shape, new Tuple<int, int>(2, 4));
Assert.AreEqual(df.iloc[0, 3], -1f);
Assert.AreEqual(df.iloc[1, 3], 1 - 1.1f);
df["AA2"] = df["AA"] - 10;
Assert.AreEqual(df.Shape, new Tuple<int, int>(2, 5));
Assert.AreEqual(df.iloc[0, 4], (DvInt4)(-10));
Assert.AreEqual(df.iloc[1, 4], (DvInt4)(-9));
}
[TestMethod]
public void TestDataFrameOpEqual()
{
var text = "AA,BB,CC\n0,1,text\n1,1.1,text2";
var df = DataFrame.ReadStr(text);
var tos = df.ToString();
Assert.AreEqual(text, tos);
Assert.AreEqual(df.Shape, new Tuple<int, int>(2, 3));
df["BB*BB"] = df["AA"] == df["BB"];
Assert.AreEqual(df.Shape, new Tuple<int, int>(2, 4));
Assert.AreEqual(df.iloc[0, 3], DvBool.False);
Assert.AreEqual(df.iloc[1, 3], DvBool.False);
df["AA2"] = df["AA"] == 0;
Assert.AreEqual(df.Shape, new Tuple<int, int>(2, 5));
Assert.AreEqual(df.iloc[0, 4], DvBool.True);
Assert.AreEqual(df.iloc[1, 4], DvBool.False);
var view = df[df["AA"] == 0];
Assert.AreEqual(view.Shape, new Tuple<int, int>(1, 5));
df["CC2"] = df["CC"] == "text";
Assert.AreEqual(df.Shape, new Tuple<int, int>(2, 6));
Assert.AreEqual(df.iloc[0, 5], DvBool.True);
Assert.AreEqual(df.iloc[1, 5], DvBool.False);
}
[TestMethod]
public void TestDataFrameOpDiv()
{
var text = "AA,BB,CC\n0,1,text\n1,1.1,text2";
var df = DataFrame.ReadStr(text);
var tos = df.ToString();
Assert.AreEqual(text, tos);
Assert.AreEqual(df.Shape, new Tuple<int, int>(2, 3));
df["BB*BB"] = df["AA"] / df["BB"];
Assert.AreEqual(df.Shape, new Tuple<int, int>(2, 4));
Assert.AreEqual(df.iloc[0, 3], 0f);
Assert.AreEqual(df.iloc[1, 3], 1 / 1.1f);
df["AA2"] = df["AA"] / 10;
Assert.AreEqual(df.Shape, new Tuple<int, int>(2, 5));
Assert.AreEqual(df.iloc[0, 4], (DvInt4)(0));
Assert.AreEqual(df.iloc[1, 4], (DvInt4)(0));
}
[TestMethod]
public void TestDataFrameOpSup()
{
var text = "AA,BB,CC\n0,1,text\n1,1.1,text2";
var df = DataFrame.ReadStr(text);
var tos = df.ToString();
Assert.AreEqual(text, tos);
Assert.AreEqual(df.Shape, new Tuple<int, int>(2, 3));
df["BB*BB"] = df["AA"] > df["BB"];
Assert.AreEqual(df.Shape, new Tuple<int, int>(2, 4));
Assert.AreEqual(df.iloc[0, 3], DvBool.False);
Assert.AreEqual(df.iloc[1, 3], DvBool.False);
}
[TestMethod]
public void TestDataFrameOpSupEqual()
{
var text = "AA,BB,CC\n0,1,text\n1,1.1,text2";
var df = DataFrame.ReadStr(text);
var tos = df.ToString();
Assert.AreEqual(text, tos);
Assert.AreEqual(df.Shape, new Tuple<int, int>(2, 3));
df["BB*BB"] = df["AA"] >= df["BB"];
Assert.AreEqual(df.Shape, new Tuple<int, int>(2, 4));
Assert.AreEqual(df.iloc[0, 3], DvBool.False);
Assert.AreEqual(df.iloc[1, 3], DvBool.False);
}
[TestMethod]
public void TestDataFrameOpInf()
{
var text = "AA,BB,CC\n0,1,text\n1,1.1,text2";
var df = DataFrame.ReadStr(text);
var tos = df.ToString();
Assert.AreEqual(text, tos);
Assert.AreEqual(df.Shape, new Tuple<int, int>(2, 3));
df["BB*BB"] = df["AA"] < df["BB"];
Assert.AreEqual(df.Shape, new Tuple<int, int>(2, 4));
Assert.AreEqual(df.iloc[0, 3], DvBool.True);
Assert.AreEqual(df.iloc[1, 3], DvBool.True);
}
[TestMethod]
public void TestDataFrameOpInfEqual()
{
var text = "AA,BB,CC\n0,1,text\n1,1.1,text2";
var df = DataFrame.ReadStr(text);
var tos = df.ToString();
Assert.AreEqual(text, tos);
Assert.AreEqual(df.Shape, new Tuple<int, int>(2, 3));
df["BB*BB"] = df["AA"] <= df["BB"];
Assert.AreEqual(df.Shape, new Tuple<int, int>(2, 4));
Assert.AreEqual(df.iloc[0, 3], DvBool.True);
Assert.AreEqual(df.iloc[1, 3], DvBool.True);
}
[TestMethod]
public void TestDataFrameOpMinusUni()
{
var text = "AA,BB,CC\n0,1,text\n1,1.1,text2";
var df = DataFrame.ReadStr(text);
var tos = df.ToString();
Assert.AreEqual(text, tos);
Assert.AreEqual(df.Shape, new Tuple<int, int>(2, 3));
df["min"] = -df["AA"];
Assert.AreEqual(df.Shape, new Tuple<int, int>(2, 4));
Assert.AreEqual(df.iloc[0, 3], (DvInt4)0);
Assert.AreEqual(df.iloc[1, 3], (DvInt4)(-1));
}
[TestMethod]
public void TestDataFrameOpNotUni()
{
var text = "AA,BB,CC\n0,1,text\n1,1.1,text2";
var df = DataFrame.ReadStr(text);
var tos = df.ToString();
Assert.AreEqual(text, tos);
Assert.AreEqual(df.Shape, new Tuple<int, int>(2, 3));
df["min"] = !(df["AA"] == 1);
Assert.AreEqual(df.Shape, new Tuple<int, int>(2, 4));
Assert.AreEqual(df.iloc[0, 3], DvBool.True);
Assert.AreEqual(df.iloc[1, 3], DvBool.False);
}
[TestMethod]
public void TestDataFrameOpPlusEqual()
{
var text = "AA,BB,CC\n0,1,text\n1,1.1,text2";
var df = DataFrame.ReadStr(text);
var tos = df.ToString();
Assert.AreEqual(text, tos);
Assert.AreEqual(df.Shape, new Tuple<int, int>(2, 3));
df["BB"] += df["AA"];
Assert.AreEqual(df.Shape, new Tuple<int, int>(2, 3));
Assert.AreEqual(df.iloc[0, 1], 1f);
Assert.AreEqual(df.iloc[1, 1], 2.1f);
}
[TestMethod]
public void TestDataFrameOpAnd()
{
var text = "AA,BB,CC\n0,1,text\n1,1.1,text2";
var df = DataFrame.ReadStr(text);
var tos = df.ToString();
Assert.AreEqual(text, tos);
Assert.AreEqual(df.Shape, new Tuple<int, int>(2, 3));
df["and"] = (df["AA"] == 0) & (df["BB"] == 1f);
Assert.AreEqual(df.Shape, new Tuple<int, int>(2, 4));
Assert.AreEqual(df.iloc[0, 3], DvBool.True);
Assert.AreEqual(df.iloc[1, 3], DvBool.False);
}
[TestMethod]
public void TestDataFrameOpOr()
{
var text = "AA,BB,CC\n0,1,text\n1,1.1,text2";
var df = DataFrame.ReadStr(text);
var tos = df.ToString();
Assert.AreEqual(text, tos);
Assert.AreEqual(df.Shape, new Tuple<int, int>(2, 3));
df["or"] = (df["AA"] == 1) | (df["BB"] == 1f);
Assert.AreEqual(df.Shape, new Tuple<int, int>(2, 4));
Assert.AreEqual(df.iloc[0, 3], DvBool.True);
Assert.AreEqual(df.iloc[1, 3], DvBool.True);
}
#endregion
#region DataFrame Copy
[TestMethod]
public void TestDataFrameOperationSet()
{
var text = "AA,BB,CC\n0,1,text\n1,1.1,text2";
var df = DataFrame.ReadStr(text);
var tos = df.ToString();
Assert.AreEqual(text, tos);
Assert.AreEqual(df.Shape, new Tuple<int, int>(2, 3));
df.loc["CC"] = "changed";
Assert.AreEqual(df.iloc[1, 2].ToString(), "changed");
}
[TestMethod]
public void TestDataFrameOperationIEnumerable()
{
var text = "AA,BB,CC\n0,1,text\n1,1.1,text2";
var df = DataFrame.ReadStr(text);
var tos = df.ToString();
Assert.AreEqual(text, tos);
Assert.AreEqual(df.Shape, new Tuple<int, int>(2, 3));
df.iloc[df["AA"].Filter<DvInt4>(c => (int)c == 1), 2] = "changed";
Assert.AreEqual(df.iloc[1, 2].ToString(), "changed");
df.loc[df["AA"].Filter<DvInt4>(c => (int)c == 1), "CC"] = "changed2";
Assert.AreEqual(df.iloc[1, 2].ToString(), "changed2");
}
[TestMethod]
public void TestDataFrameOperationCopy()
{
var text = "AA,BB,CC\n0,1,text\n1,1.1,text2";
var df = DataFrame.ReadStr(text);
var tos = df.ToString();
var copy = df.Copy();
var tos2 = copy.ToString();
Assert.AreEqual(tos, tos2);
copy.iloc[copy["AA"].Filter<DvInt4>(c => (int)c == 1), 2] = "changed";
tos2 = copy.ToString();
Assert.AreNotEqual(tos, tos2);
}
[TestMethod]
public void TestDataViewFrame()
{
var text = "AA,BB,CC\n0,1,text\n1,1.1,text2\n2,2.1,text3";
var df = DataFrame.ReadStr(text);
var view = df[new int[] { 0, 2 }, new int[] { 0, 2 }];
var tv = view.ToString();
Assert.AreEqual("AA,CC\n0,text\n2,text3", tv);
var dfview = view.Copy();
var tv2 = dfview.ToString();
Assert.AreEqual("AA,CC\n0,text\n2,text3", tv2);
dfview["AA1"] = view["AA"] + 1;
var tv3 = dfview.ToString();
Assert.AreEqual("AA,CC,AA1\n0,text,1\n2,text3,3", tv3);
var view2 = df[df.ALL, new[] { "AA", "CC" }];
var tv4 = view2.ToString();
Assert.AreEqual("AA,CC\n0,text\n1,text2\n2,text3", tv4);
var view3 = df[new[] { 0 }, df.ALL];
var tv5 = view3.ToString();
Assert.AreEqual("AA,BB,CC\n0,1,text", tv5);
}
[TestMethod]
public void TestCreateFromArrays()
{
var df = new DataFrame();
df.AddColumn("i", new int[] { 0, 1 });
df.AddColumn("x", new float[] { 0.5f, 1.5f });
var tx = df.ToString();
Assert.AreEqual(tx, "i,x\n0,0.5\n1,1.5");
}
#endregion
#region dataframe function
[TestMethod]
public void TestDataFrameColumnApply()
{
var text = "AA,BB,CC\n0,1,text\n1,1.1,text2";
var df = DataFrame.ReadStr(text);
Assert.AreEqual(df.Shape, new Tuple<int, int>(2, 3));
df["fAA"] = df["AA"].Apply((ref DvInt4 vin, ref float vout) => { vout = (float)vin; });
Assert.AreEqual(df.Shape, new Tuple<int, int>(2, 4));
Assert.AreEqual(df.iloc[0, 3], 0f);
Assert.AreEqual(df.iloc[1, 3], 1f);
}
[TestMethod]
public void TestDataFrameColumnDrop()
{
var text = "AA,BB,CC\n0,1,text\n1,1.1,text2";
var df = DataFrame.ReadStr(text);
Assert.AreEqual(df.Shape, new Tuple<int, int>(2, 3));
var view = df.Drop(new[] { "AA" });
Assert.AreEqual(view.Shape, new Tuple<int, int>(2, 2));
Assert.AreEqual(view.iloc[0, 0], 1f);
Assert.AreEqual(view.iloc[1, 0], 1.1f);
}
[TestMethod]
public void TestDataFrameSortColumn()
{
var text = "AA,BB,CC\n0,1,text\n1,1.1,text2";
var df = DataFrame.ReadStr(text);
Assert.AreEqual(df.Shape, new Tuple<int, int>(2, 3));
var order = df["AA"].Sort(false, false);
Assert.AreEqual(order.Length, 2);
Assert.AreEqual(order[0], 1);
Assert.AreEqual(order[1], 0);
df["AA"].Sort(false, true);
Assert.AreEqual(order.Length, 2);
Assert.AreEqual(df.iloc[0, 0], (DvInt4)1);
Assert.AreEqual(df.iloc[1, 0], (DvInt4)0);
}
[TestMethod]
public void TestDataFrameEnumerateItems()
{
var text = "AA,BB,CC\n0,1,text\n1,1.1,text2";
var df = DataFrame.ReadStr(text);
Assert.AreEqual(df.Shape, new Tuple<int, int>(2, 3));
var el1 = df.EnumerateItems<DvInt4>(new[] { "AA" }).Select(c => c.ToTuple()).ToArray();
Assert.AreEqual(el1.Length, 2);
Assert.AreEqual(el1[0].Item1, 0);
Assert.AreEqual(el1[1].Item1, 1);
var el2 = df.EnumerateItems<DvInt4, float>(new[] { "AA", "BB" }).Select(c => c.ToTuple()).ToArray();
Assert.AreEqual(el2.Length, 2);
Assert.AreEqual(el2[0].Item1, 0);
Assert.AreEqual(el2[1].Item1, 1);
Assert.AreEqual(el2[0].Item2, 1f);
Assert.AreEqual(el2[1].Item2, 1.1f);
var el3 = df.EnumerateItems<DvInt4, float, DvText>(new[] { "AA", "BB", "CC" }).Select(c => c.ToTuple()).ToArray();
Assert.AreEqual(el3.Length, 2);
Assert.AreEqual(el3[0].Item1, 0);
Assert.AreEqual(el3[1].Item1, 1);
Assert.AreEqual(el3[0].Item2, 1f);
Assert.AreEqual(el3[1].Item2, 1.1f);
Assert.AreEqual(el3[0].Item3, new DvText("text"));
Assert.AreEqual(el3[1].Item3, new DvText("text2"));
}
#endregion
#region SQL function
[TestMethod]
public void TestDataFrameSort()
{
var text = "AA,BB,CC\n0,1,text\n1,1.1,text2\n0,-1.1,text3";
var df = DataFrame.ReadStr(text);
Assert.AreEqual(df.Shape, new Tuple<int, int>(3, 3));
df.TSort<DvInt4, float>(new[] { 0, 1 });
Assert.AreEqual(df.iloc[0, 0], (DvInt4)0);
Assert.AreEqual(df.iloc[1, 0], (DvInt4)0);
Assert.AreEqual(df.iloc[2, 0], (DvInt4)1);
Assert.AreEqual(df.iloc[0, 1], -1.1f);
Assert.AreEqual(df.iloc[1, 1], 1f);
Assert.AreEqual(df.iloc[2, 1], 1.1f);
df.TSort<DvInt4, float>(new[] { 0, 1 }, false);
Assert.AreEqual(df.iloc[2, 0], (DvInt4)0);
Assert.AreEqual(df.iloc[1, 0], (DvInt4)0);
Assert.AreEqual(df.iloc[0, 0], (DvInt4)1);
Assert.AreEqual(df.iloc[2, 1], -1.1f);
Assert.AreEqual(df.iloc[1, 1], 1f);
Assert.AreEqual(df.iloc[0, 1], 1.1f);
}
[TestMethod]
public void TestDataFrameSortUnTyped()
{
var text = "AA,BB,CC\n0,1,text\n1,1.1,text2\n0,-1.1,text3";
var df = DataFrame.ReadStr(text);
Assert.AreEqual(df.Shape, new Tuple<int, int>(3, 3));
df.Sort(new[] { "AA" });
Assert.AreEqual(df.iloc[0, 0], (DvInt4)0);
Assert.AreEqual(df.iloc[1, 0], (DvInt4)0);
Assert.AreEqual(df.iloc[2, 0], (DvInt4)1);
}
[TestMethod]
public void TestDataFrameSort2Untyped()
{
var text = "AA,BB,CC\n0,1,text\n1,1.1,text2\n0,-1.1,text3";
var df = DataFrame.ReadStr(text);
Assert.AreEqual(df.Shape, new Tuple<int, int>(3, 3));
df.Sort(new[] { "AA", "BB" });
Assert.AreEqual(df.iloc[0, 0], (DvInt4)0);
Assert.AreEqual(df.iloc[1, 0], (DvInt4)0);
Assert.AreEqual(df.iloc[2, 0], (DvInt4)1);
Assert.AreEqual(df.iloc[0, 1], -1.1f);
Assert.AreEqual(df.iloc[1, 1], 1f);
Assert.AreEqual(df.iloc[2, 1], 1.1f);
df.Sort(new[] { "AA", "BB" }, false);
Assert.AreEqual(df.iloc[2, 0], (DvInt4)0);
Assert.AreEqual(df.iloc[1, 0], (DvInt4)0);
Assert.AreEqual(df.iloc[0, 0], (DvInt4)1);
Assert.AreEqual(df.iloc[2, 1], -1.1f);
Assert.AreEqual(df.iloc[1, 1], 1f);
Assert.AreEqual(df.iloc[0, 1], 1.1f);
}
[TestMethod]
public void TestDataFrameSortView()
{
var text = "AA,BB,CC\n0,1,text\n1,1.1,text2\n0,-1.1,text3";
var df = DataFrame.ReadStr(text);
Assert.AreEqual(df.Shape, new Tuple<int, int>(3, 3));
var view = df[new int[] { 1, 2 }];
Assert.AreEqual(view.Length, 2);
view.TSort<DvInt4, float>(new[] { 0, 1 });
Assert.AreEqual(view.iloc[0, 0], (DvInt4)0);
Assert.AreEqual(view.iloc[1, 0], (DvInt4)1);
Assert.AreEqual(view.iloc[0, 1], -1.1f);
Assert.AreEqual(view.iloc[1, 1], 1.1f);
view.TSort<DvInt4, float>(new[] { 0, 1 }, false);
Assert.AreEqual(view.iloc[1, 0], (DvInt4)0);
Assert.AreEqual(view.iloc[0, 0], (DvInt4)1);
Assert.AreEqual(view.iloc[1, 1], -1.1f);
Assert.AreEqual(view.iloc[0, 1], 1.1f);
}
[TestMethod]
public void TestDataFrameDict()
{
var rows = new Dictionary<string, object>[]
{
new Dictionary<string, object>() { {"AA", 0 }, {"BB", 1f }, {"CC", "text" } },
new Dictionary<string, object>() { {"AA", 1 }, {"BB", 1.1f }, {"CC", "text2" } },
};
var df = new DataFrame(rows);
Assert.AreEqual(df.Shape, new Tuple<int, int>(2, 3));
var text = "AA,BB,CC\n0,1,text\n1,1.1,text2";
Assert.AreEqual(text, df.ToString());
var rows2 = new Dictionary<string, object>[]
{
new Dictionary<string, object>() { {"AA", (DvInt4)0 }, {"BB", 1f }, {"CC", new DvText("text") } },
new Dictionary<string, object>() { {"AA", (DvInt4)1 }, {"BB", 1.1f }, {"CC", new DvText("text2") } },
};
df = new DataFrame(rows2);
Assert.AreEqual(df.Shape, new Tuple<int, int>(2, 3));
Assert.AreEqual(text, df.ToString());
}
[TestMethod]
public void TestDataFrameAggregated()
{
var rows = new Dictionary<string, object>[]
{
new Dictionary<string, object>() { {"AA", 0 }, {"BB", 1f }, {"CC", "text" } },
new Dictionary<string, object>() { {"AA", 1 }, {"BB", 1.1f }, {"CC", "text2" } },
};
var df = new DataFrame(rows);
var su = df.Sum();
Assert.AreEqual(su.Shape, new Tuple<int, int>(1, 3));
var text = "AA,BB,CC\n1,2.1,texttext2";
Assert.AreEqual(text, su.ToString());
su = df.Min();
Assert.AreEqual(su.Shape, new Tuple<int, int>(1, 3));
text = "AA,BB,CC\n0,1,text";
Assert.AreEqual(text, su.ToString());
su = df.Max();
Assert.AreEqual(su.Shape, new Tuple<int, int>(1, 3));
text = "AA,BB,CC\n1,1.1,text2";
Assert.AreEqual(text, su.ToString());
su = df.Mean();
Assert.AreEqual(su.Shape, new Tuple<int, int>(1, 3));
text = "AA,BB,CC\n0,1.05,";
Assert.AreEqual(text, su.ToString());
su = df.Count();
Assert.AreEqual(su.Shape, new Tuple<int, int>(1, 3));
text = "AA,BB,CC\n2,2,";
Assert.AreEqual(text, su.ToString());
su = df[new[] { 0 }].Count();
Assert.AreEqual(su.Shape, new Tuple<int, int>(1, 3));
text = "AA,BB,CC\n1,1,";
Assert.AreEqual(text, su.ToString());
}
[TestMethod]
public void TestDataFrameConcatenate()
{
var rows = new Dictionary<string, object>[]
{
new Dictionary<string, object>() { {"AA", 0 }, {"BB", 1f }, {"CC", "text" } },
new Dictionary<string, object>() { {"AA", 1 }, {"BB", 1.1f }, {"CC", "text2" } },
};
var df = new DataFrame(rows);
var conc = DataFrame.Concat(new[] { df, df });
Assert.AreEqual(conc.Shape, new Tuple<int, int>(4, 3));
rows = new Dictionary<string, object>[]
{
new Dictionary<string, object>() { {"BB", 1f }, {"CC", "text" } },
new Dictionary<string, object>() { {"AA", 1 }, {"BB", 1.1f } },
};
var df2 = new DataFrame(rows);
conc = DataFrame.Concat(new[] { df, df2 });
Assert.AreEqual(conc.Shape, new Tuple<int, int>(4, 3));
Assert.AreEqual(conc.iloc[0, 0], (DvInt4)0);
Assert.AreEqual(conc.iloc[3, 2], DvText.Empty);
Assert.AreEqual(conc.iloc[2, 0], (DvInt4)0);
rows = new Dictionary<string, object>[]
{
new Dictionary<string, object>() { {"BB", 1f }, {"CC", new DvText("text") } },
new Dictionary<string, object>() { {"AA", (DvInt4)1 }, {"BB", 1.1f } },
};
df2 = new DataFrame(rows);
conc = DataFrame.Concat(new[] { df, df2 });
Assert.AreEqual(conc.Shape, new Tuple<int, int>(4, 3));
Assert.AreEqual(conc.iloc[2, 0], DvInt4.NA);
Assert.AreEqual(conc.iloc[3, 2], DvText.NA);
}
[TestMethod]
public void TestDataFrameGroupBy()
{
var rows = new Dictionary<string, object>[]
{
new Dictionary<string, object>() { {"AA", 0 }, {"BB", 1f }, {"CC", "text" } },
new Dictionary<string, object>() { {"AA", 1 }, {"BB", 1.1f }, {"CC", "text2" } },
new Dictionary<string, object>() { {"AA", 0 }, {"BB", 1.1f }, {"CC", "text3" } },
new Dictionary<string, object>() { {"AA", 2 }, {"BB", 1.1f }, {"CC", "text4" } },
new Dictionary<string, object>() { {"AA", 1 }, {"BB", 1.1f }, {"CC", "text5" } },
};
var df = new DataFrame(rows);
Assert.AreEqual(df.Shape, new Tuple<int, int>(5, 3));
var gr = df.TGroupBy<DvInt4>(new int[] { 0 }).Count();
Assert.AreEqual(gr.Shape, new Tuple<int, int>(3, 3));
var text = gr.ToString();
var exp = "AA,BB,CC\n0,2,\n1,2,\n2,1,";
Assert.AreEqual(exp, text);
gr = df.TGroupBy<DvInt4>(new int[] { 0 }).Sum();
Assert.AreEqual(gr.Shape, new Tuple<int, int>(3, 3));
text = gr.ToString();
exp = "AA,BB,CC\n0,2.1,texttext3\n1,2.2,text2text5\n2,1.1,text4";
Assert.AreEqual(exp, text);
gr = df.TGroupBy<DvInt4>(new int[] { 0 }).Min();
Assert.AreEqual(gr.Shape, new Tuple<int, int>(3, 3));
text = gr.ToString();
exp = "AA,BB,CC\n0,1,text\n1,1.1,text2\n2,1.1,text4";
Assert.AreEqual(exp, text);
gr = df.TGroupBy<DvInt4>(new int[] { 0 }).Max();
Assert.AreEqual(gr.Shape, new Tuple<int, int>(3, 3));
text = gr.ToString();
exp = "AA,BB,CC\n0,1.1,text3\n1,1.1,text5\n2,1.1,text4";
Assert.AreEqual(exp, text);
gr = df.TGroupBy<DvInt4>(new int[] { 0 }).Mean();
Assert.AreEqual(gr.Shape, new Tuple<int, int>(3, 3));
text = gr.ToString();
exp = "AA,BB,CC\n0,1.05,\n1,1.1,\n2,1.1,";
Assert.AreEqual(exp, text);
}
[TestMethod]
public void TestDataFrameGroupBy2()
{
var rows = new Dictionary<string, object>[]
{
new Dictionary<string, object>() { {"AA", 0 }, {"BB", 1f }, {"CC", "text" } },
new Dictionary<string, object>() { {"AA", 1 }, {"BB", 1.1f }, {"CC", "text2" } },
new Dictionary<string, object>() { {"AA", 0 }, {"BB", 1f }, {"CC", "text3" } },
new Dictionary<string, object>() { {"AA", 2 }, {"BB", 1.1f }, {"CC", "text4" } },
new Dictionary<string, object>() { {"AA", 1 }, {"BB", 1.1f }, {"CC", "text5" } },
};
var df = new DataFrame(rows);
Assert.AreEqual(df.Shape, new Tuple<int, int>(5, 3));
var gr = df.TGroupBy<DvInt4, float>(new int[] { 0, 1 }).Count();
Assert.AreEqual(gr.Shape, new Tuple<int, int>(3, 3));
var text = gr.ToString();
var exp = "AA,BB,CC\n0,1,\n1,1.1,\n2,1.1,";
Assert.AreEqual(exp, text);
gr = df.TGroupBy<DvInt4, float>(new int[] { 0, 1 }).Sum();
Assert.AreEqual(gr.Shape, new Tuple<int, int>(3, 3));
text = gr.ToString();
exp = "AA,BB,CC\n0,1,texttext3\n1,1.1,text2text5\n2,1.1,text4";
Assert.AreEqual(exp, text);
gr = df.TGroupBy<DvInt4, float>(new int[] { 0, 1 }).Min();
Assert.AreEqual(gr.Shape, new Tuple<int, int>(3, 3));
text = gr.ToString();
exp = "AA,BB,CC\n0,1,text\n1,1.1,text2\n2,1.1,text4";
Assert.AreEqual(exp, text);
gr = df.TGroupBy<DvInt4, float>(new int[] { 0, 1 }).Max();
Assert.AreEqual(gr.Shape, new Tuple<int, int>(3, 3));
text = gr.ToString();
exp = "AA,BB,CC\n0,1,text3\n1,1.1,text5\n2,1.1,text4";
Assert.AreEqual(exp, text);
gr = df.TGroupBy<DvInt4, float>(new int[] { 0, 1 }).Mean();
Assert.AreEqual(gr.Shape, new Tuple<int, int>(3, 3));
text = gr.ToString();
exp = "AA,BB,CC\n0,1,\n1,1.1,\n2,1.1,";
Assert.AreEqual(exp, text);
}
[TestMethod]
public void TestDataFrameGroupBy3()
{
var rows = new Dictionary<string, object>[]
{
new Dictionary<string, object>() { {"AA", 0 }, {"BB", 1f }, {"CC", "text" } },
new Dictionary<string, object>() { {"AA", 1 }, {"BB", 1.1f }, {"CC", "text2" } },
new Dictionary<string, object>() { {"AA", 0 }, {"BB", 1f }, {"CC", "text" } },
new Dictionary<string, object>() { {"AA", 2 }, {"BB", 1.1f }, {"CC", "text4" } },
new Dictionary<string, object>() { {"AA", 1 }, {"BB", 1.1f }, {"CC", "text2" } },
};
var df = new DataFrame(rows);
Assert.AreEqual(df.Shape, new Tuple<int, int>(5, 3));
var gr = df.TGroupBy<DvInt4, float, DvText>(new int[] { 0, 1, 2 }).Count();
Assert.AreEqual(gr.Shape, new Tuple<int, int>(3, 3));
var text = gr.ToString();
var exp = "AA,BB,CC\n0,1,text\n1,1.1,text2\n2,1.1,text4";
Assert.AreEqual(exp, text);
gr = df.TGroupBy<DvInt4, float, DvText>(new int[] { 0, 1, 2 }).Sum();
Assert.AreEqual(gr.Shape, new Tuple<int, int>(3, 3));
text = gr.ToString();
exp = "AA,BB,CC\n0,1,text\n1,1.1,text2\n2,1.1,text4";
Assert.AreEqual(exp, text);
gr = df.TGroupBy<DvInt4, float, DvText>(new int[] { 0, 1, 2 }).Min();
Assert.AreEqual(gr.Shape, new Tuple<int, int>(3, 3));
text = gr.ToString();
exp = "AA,BB,CC\n0,1,text\n1,1.1,text2\n2,1.1,text4";
Assert.AreEqual(exp, text);
gr = df.TGroupBy<DvInt4, float, DvText>(new int[] { 0, 1, 2 }).Max();
Assert.AreEqual(gr.Shape, new Tuple<int, int>(3, 3));
text = gr.ToString();
exp = "AA,BB,CC\n0,1,text\n1,1.1,text2\n2,1.1,text4";
Assert.AreEqual(exp, text);
gr = df.TGroupBy<DvInt4, float, DvText>(new int[] { 0, 1, 2 }).Mean();
Assert.AreEqual(gr.Shape, new Tuple<int, int>(3, 3));
text = gr.ToString();
exp = "AA,BB,CC\n0,1,text\n1,1.1,text2\n2,1.1,text4";
Assert.AreEqual(exp, text);
}
[TestMethod]
public void TestDataFrameGroupByAgnostic()
{
var rows = new Dictionary<string, object>[]
{
new Dictionary<string, object>() { {"AA", 0 }, {"BB", 1f }, {"CC", "text" } },
new Dictionary<string, object>() { {"AA", 1 }, {"BB", 1.1f }, {"CC", "text2" } },
new Dictionary<string, object>() { {"AA", 0 }, {"BB", 1.1f }, {"CC", "text3" } },
new Dictionary<string, object>() { {"AA", 2 }, {"BB", 1.1f }, {"CC", "text4" } },
new Dictionary<string, object>() { {"AA", 1 }, {"BB", 1.1f }, {"CC", "text5" } },
};
var df = new DataFrame(rows);
Assert.AreEqual(df.Shape, new Tuple<int, int>(5, 3));
var gr = df.GroupBy(new int[] { 0 }).Count();
Assert.AreEqual(gr.Shape, new Tuple<int, int>(3, 3));
var text = gr.ToString();
var exp = "AA,BB,CC\n0,2,\n1,2,\n2,1,";
Assert.AreEqual(exp, text);
gr = df.GroupBy(new int[] { 0 }).Sum();
Assert.AreEqual(gr.Shape, new Tuple<int, int>(3, 3));
text = gr.ToString();
exp = "AA,BB,CC\n0,2.1,texttext3\n1,2.2,text2text5\n2,1.1,text4";
Assert.AreEqual(exp, text);
gr = df.GroupBy(new int[] { 0 }).Min();
Assert.AreEqual(gr.Shape, new Tuple<int, int>(3, 3));
text = gr.ToString();
exp = "AA,BB,CC\n0,1,text\n1,1.1,text2\n2,1.1,text4";
Assert.AreEqual(exp, text);
gr = df.GroupBy(new int[] { 0 }).Max();
Assert.AreEqual(gr.Shape, new Tuple<int, int>(3, 3));
text = gr.ToString();
exp = "AA,BB,CC\n0,1.1,text3\n1,1.1,text5\n2,1.1,text4";
Assert.AreEqual(exp, text);
gr = df.GroupBy(new int[] { 0 }).Mean();
Assert.AreEqual(gr.Shape, new Tuple<int, int>(3, 3));
text = gr.ToString();
exp = "AA,BB,CC\n0,1.05,\n1,1.1,\n2,1.1,";
Assert.AreEqual(exp, text);
}
[TestMethod]
public void TestDataFrameGroupByAgnostic2()
{
var rows = new Dictionary<string, object>[]
{
new Dictionary<string, object>() { {"AA", 0 }, {"BB", 1f }, {"CC", "text" } },
new Dictionary<string, object>() { {"AA", 1 }, {"BB", 1.1f }, {"CC", "text2" } },
new Dictionary<string, object>() { {"AA", 0 }, {"BB", 1f }, {"CC", "text3" } },
new Dictionary<string, object>() { {"AA", 2 }, {"BB", 1.1f }, {"CC", "text4" } },
new Dictionary<string, object>() { {"AA", 1 }, {"BB", 1.1f }, {"CC", "text5" } },
};
var df = new DataFrame(rows);
Assert.AreEqual(df.Shape, new Tuple<int, int>(5, 3));
var gr = df.GroupBy(new int[] { 0, 1 }).Count();
Assert.AreEqual(gr.Shape, new Tuple<int, int>(3, 3));
var text = gr.ToString();
var exp = "AA,BB,CC\n0,1,\n1,1.1,\n2,1.1,";
Assert.AreEqual(exp, text);
gr = df.GroupBy(new int[] { 0, 1 }).Sum();
Assert.AreEqual(gr.Shape, new Tuple<int, int>(3, 3));
text = gr.ToString();
exp = "AA,BB,CC\n0,1,texttext3\n1,1.1,text2text5\n2,1.1,text4";
Assert.AreEqual(exp, text);
gr = df.GroupBy(new int[] { 0, 1 }).Min();
Assert.AreEqual(gr.Shape, new Tuple<int, int>(3, 3));
text = gr.ToString();
exp = "AA,BB,CC\n0,1,text\n1,1.1,text2\n2,1.1,text4";
Assert.AreEqual(exp, text);