我正在尝试在jupyter笔记本中获取数据透视表，但aggfunc无法正常工作

Question

我正在尝试在jupyter笔记本中获取数据透视表，但是aggfunc = sum无法正常工作。 我并排获取所有数据而不是求和。下面是完整代码：

    public partial class Form7ImageOnly : Form
{
    Bitmap FrameData;
    bool loaded = false;
    string file1 = "penguine.png";
    string file2 = "dove.png";
    int program;
    int vertShader;
    int fragShader;
    int buffer;
    int positionLocation;
    int texture;
    int ScreenWidth;
    int ScreenHeight;
    float[] vertices = {
            // Left bottom triangle
            -1f, -1f, 0f,
            1f, -1f, 0f,
            1f, 1f, 0f,
            // Right top triangle
            1f, 1f, 0f,
            -1f, 1f, 0f,
            -1f, -1f, 0f
    };
    public Form7ImageOnly()
    {
        InitializeComponent();
    }

    private void Form7ImageOnly_Load(object sender, EventArgs e)
    {

        glControl.Resize += new EventHandler(glControl_Resize);
        glControl.Paint += new PaintEventHandler(glControl_Paint);

        GL.ClearColor(Color.Yellow);
        GL.Enable(EnableCap.DepthTest);

        Application.Idle += Application_Idle;

        // Ensure that the viewport and projection matrix are set correctly.
        glControl_Resize(glControl, EventArgs.Empty);
    }
    void Application_Idle(object sender, EventArgs e)
    {
        while (glControl.IsIdle)
        {
            Render();
        }
    }
    private void Render()
    {
       ScreenWidth = Screen.PrimaryScreen.Bounds.Width;
       ScreenHeight = Screen.PrimaryScreen.Bounds.Height;
        glControl.Size = new System.Drawing.Size(ScreenWidth, ScreenHeight);

        texture = LoadTexture(file);
        GL.Clear(ClearBufferMask.ColorBufferBit | ClearBufferMask.DepthBufferBit);
        DrawImage(texture);

    }
    private void glControl_Paint(object sender, PaintEventArgs e)
    {
        Render();
    }
    private void glControl_Resize(object sender, EventArgs e)
    {
        Init();
    }
    private void Init()
    {
        CreateShaders();
        CreateProgram();
        InitBuffers();
    }
    public void DrawImage(int image)
    {

        GL.Viewport(new Rectangle(0, 0,  ScreenWidth, ScreenHeight));
        GL.MatrixMode(MatrixMode.Projection);
        GL.PushMatrix();
        GL.LoadIdentity();

        //GL.Ortho(0, 1920, 0, 1080, 0, 1);

        GL.MatrixMode(MatrixMode.Modelview);
        GL.PushMatrix();
        GL.LoadIdentity();

        GL.Disable(EnableCap.Lighting);

        GL.Enable(EnableCap.Texture2D);

        GL.ActiveTexture(TextureUnit.Texture0);
        GL.BindTexture(TextureTarget.Texture2D, image);

        //GL.Begin(PrimitiveType.Quads);

        //GL.TexCoord2(0, 1);
        //GL.Vertex3(0, 0, 0);

        //GL.TexCoord2(1, 1);
        //GL.Vertex3(1920, 0, 0);

        //GL.TexCoord2(1, 0);
        //GL.Vertex3(1920, 1080, 0);

        //GL.TexCoord2(0, 0);
        //GL.Vertex3(0, 1080, 0);

        //GL.End();

        RunShaders();

        GL.Disable(EnableCap.Texture2D);
        GL.PopMatrix();

        GL.MatrixMode(MatrixMode.Projection);
        GL.PopMatrix();

        GL.MatrixMode(MatrixMode.Modelview);

        ErrorCode ec = GL.GetError();
        if (ec != 0)
            System.Console.WriteLine(ec.ToString());
        Console.Read();
        glControl.SwapBuffers();
    }
    private void RunShaders()
    {

        GL.ClearColor(Color.Yellow);
        GL.UseProgram(program);
        GL.DrawArrays(PrimitiveType.Triangles, 0, vertices.Length / 3);

        ErrorCode ec = GL.GetError();
        if (ec != 0)
            System.Console.WriteLine(ec.ToString());
        Console.Read();

    }
    private void CreateProgram()
    {
        program = GL.CreateProgram();
        GL.AttachShader(program, vertShader);
        GL.AttachShader(program, fragShader);
        GL.LinkProgram(program);
    }

    private void CreateShaders()
    {
        /***********Vert Shader********************/
        vertShader = GL.CreateShader(ShaderType.VertexShader);
        GL.ShaderSource(vertShader, @"attribute vec3 a_position;
                                    varying vec2 vTexCoord;
                                    void main() {
                                    vTexCoord = (a_position.xy + 1) / 2;
                                    gl_Position = vec4(a_position, 1);
                                    }");
        GL.CompileShader(vertShader);


        /***********Frag Shader ****************/
        fragShader = GL.CreateShader(ShaderType.FragmentShader);
        GL.ShaderSource(fragShader, @"precision highp float;
    uniform sampler2D sTexture;
                                   varying vec2 vTexCoord;
                             void main ()
                             {
                                 vec4    color   = texture2D (sTexture, vTexCoord);
                                if(color.r < 0.3){color.r = 1.0;}
                              //  Save the result
                                 gl_FragColor    = color;
                             }");
        GL.CompileShader(fragShader);
    }
    private void InitBuffers()
    {
        buffer = GL.GenBuffer();
        positionLocation = GL.GetAttribLocation(program, "a_position");
        GL.EnableVertexAttribArray(positionLocation);
        GL.BindBuffer(BufferTarget.ArrayBuffer, buffer);
        GL.BufferData(BufferTarget.ArrayBuffer, (IntPtr)(vertices.Length * sizeof(float)), vertices, BufferUsageHint.StaticDraw);
        GL.VertexAttribPointer(positionLocation, 3, VertexAttribPointerType.Float, false, 0, 0);
    }
    public int LoadTexture(string file)
    {
        Bitmap bitmap = new Bitmap(file);
        int tex = -1;
        if (bitmap != null)
        {
            GL.DeleteTextures(1, ref tex);
            GL.Hint(HintTarget.PerspectiveCorrectionHint, HintMode.Nicest);

            GL.GenTextures(1, out tex);
            GL.BindTexture(TextureTarget.Texture2D, tex);
            bitmap.RotateFlip(RotateFlipType.RotateNoneFlipY);
            BitmapData data = bitmap.LockBits(new System.Drawing.Rectangle(0, 0, bitmap.Width, bitmap.Height),
           ImageLockMode.ReadOnly, System.Drawing.Imaging.PixelFormat.Format32bppArgb);

            GL.TexImage2D(TextureTarget.Texture2D, 0, PixelInternalFormat.Rgba, data.Width, data.Height, 0,
            OpenTK.Graphics.OpenGL.PixelFormat.Bgra, PixelType.UnsignedByte, data.Scan0);
            bitmap.UnlockBits(data);

            GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureMinFilter, (int)TextureMinFilter.Linear);
            GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureMagFilter, (int)TextureMagFilter.Linear);
            GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureWrapS, (int)TextureWrapMode.ClampToEdge);
            GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureWrapT, (int)TextureWrapMode.ClampToEdge);
        }
        return tex;
    }
}