Пример #1
0
        private void FormGini_Load(object sender, EventArgs e)
        {
            FormUtama form = (FormUtama)this.Owner;

            list = form.listOfPerson;
            Total();

            GiniT yesF1 = Feat1("YES");

            listGiniF1.Add(yesF1);
            GiniT noF1 = Feat1("NO");

            listGiniF1.Add(noF1);

            GiniT yesF2 = Feat2("YES");

            listGiniF2.Add(yesF2);
            GiniT noF2 = Feat2("YES");

            listGiniF2.Add(noF2);

            yesF1.CalcGini();
            noF1.CalcGini();

            yesF2.CalcGini();
            noF2.CalcGini();

            textBoxOutput.Text = yesF1.Gini.ToString();
            textBox1.Text      = GiniChild.CalcGiniChild(listGiniF2, total).ToString();

            //GiniChild.CalcGiniChild(listGiniF1, total).ToString();
            //
        }
Пример #2
0
        private List <GiniT> Feat3(string node)
        {
            List <GiniT> listOfGini = new List <GiniT>();

            list.Sort(delegate(Person x, Person y)
            {
                if (x.Feat3 == 0 && y.Feat3 == 0)
                {
                    return(0);
                }
                else if (x.Feat3 == 0)
                {
                    return(-1);
                }
                else if (y.Feat3 == 0)
                {
                    return(1);
                }
                else
                {
                    return(x.Feat3.CompareTo(y.Feat3));
                }
            });

            int split = (list[0].Feat3 + list[1].Feat3) / 2;

            for (int i = 2; i < list.Count; i++)
            {
                int sameSplit = (list[i - 1].Feat3 + list[i].Feat3) / 2;

                if (split != sameSplit)
                {
                    foreach (Person person in list)
                    {
                        if (node == "<=")
                        {
                            if (person.Feat3 <= split && person.Classif == "C0")
                            {
                                c0++;
                            }
                            else if (person.Feat3 <= split && person.Classif == "C1")
                            {
                                c1++;
                            }
                        }
                        else
                        {
                            if (person.Feat3 > split && person.Classif == "C0")
                            {
                                c0++;
                            }
                            else if (person.Feat3 > split && person.Classif == "C1")
                            {
                                c1++;
                            }
                        }
                    }

                    GiniT gini = new GiniT(node + " " + split.ToString(), c0, c1);
                    gini.CalcGini();
                    listOfGini.Add(gini);
                    c0    = 0;
                    c1    = 0;
                    split = sameSplit;
                }
            }

            return(listOfGini);
        }