Decision Tree Visualisation

Question

Hey guys, My final project is Decision Tree Creator and I have to use C4.5 and ID3 algorithms for generating the tree. You know that these algorithms are calculating entropy and information gain for every attributes. I finished these parts and I know that whict attribute will be on the top and its branches but I have a problem for generating the tree on the screen. I heard that there is a library for generating the tree on the screen. I have to show attributes' names, their percentage and possible datas' names on the nodes and branches.

 

If you know that library's name, please tell me and I can not use weka or other tool for this operation... 

This library should be for C# !  

Answer 1

You'll need to call Application.DoEvents() before Thread.Sleep(), otherwise the color changes will be cached by GDI+ and won't take effect until the method ends.

Here's how I'd do it. I'm assuming that the buttons all have different colors to start with and you want them to retain their colors when they are in sorted order. You don't need to deal with the case i == 5 as it will never be called:

        public void SwapColor(Button b1, Button b2)

        {

            Color tempColor = b1.BackColor;

            b1.BackColor = b2.BackColor;

            b2.BackColor = tempColor;

        }

        public void BubbleSort(int[] array, int Size)

        {

            int temp;

            for (int pass = 1; pass < Size; pass++)

            {

                for (int i = 0; i < Size - pass; i++)

                {

                    if (array[i] > array[i + 1])

                    {

                        if (i == 0)

                        {

                            SwapColor(btn1, btn2);

                        }

                        if (i == 1)

                        {

                            SwapColor(btn2, btn3);                       

                        }

                        if (i == 2)

                        {

                            SwapColor(btn3, btn4);

                        }

                        if (i == 3)

                        {

                            SwapColor(btn4, btn5);

                        }

                        if (i == 4)

                        {

                            SwapColor(btn5, btn6);

                        }

                       

                        Application.DoEvents();

                        Thread.Sleep(1000); // 2000 is a bit long 

                        temp = array[i];

                        array[i] = array[i + 1];

                        array[i + 1] = temp;

                    }

                }

            }

            a();

        }