Question

public class ImageView extends JComponent {

    protected static final Dimension DEFAULT_SIZE = new Dimension(480, 320);
    private BufferedImage mImage;

    private  Timer invalidationTimer;

    public ImageView() {
        setBackground(Color.WHITE);
        invalidationTimer = new Timer(100, new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                stateInvalidated();
            }
        });
        invalidationTimer.setRepeats(false);
    }

    public ImageView(int width, int height) {
        this();
        mImage = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB);
        clear();
    }

    @Override
    public void invalidate() {
        super.invalidate(); 
        invalidationTimer.restart();
    }

    protected void stateInvalidated() {
        System.out.println(getWidth() + "x" + getHeight());
    }

    public BufferedImage getImage() {
        return mImage;
    }

    public void setImage(BufferedImage image) {
        mImage = image;
    }

    public void clear() {
        if (mImage == null) {
            return;
        }
        Graphics g = mImage.getGraphics();
        g.setColor(Color.WHITE);
        g.fillRect(0, 0, mImage.getWidth(), mImage.getHeight());
        g.dispose();
    }

    @Override
    public Dimension getPreferredSize() {
        return mImage == null ? DEFAULT_SIZE : new Dimension(mImage.getWidth(), mImage.getHeight());
    }

    @Override
    protected void paintComponent(Graphics g) {
        super.paintComponent(g);
        if (mImage == null) {
            return;
        }
        //g.setColor(Color.white);
        //g.fillRect(0, 0, getWidth(), getHeight());
        int x = (getWidth() - mImage.getWidth()) / 2;
        int y = (getHeight() - mImage.getHeight()) / 2;
        g.drawImage(mImage, x, y, this);
    }
}

一行是Serias对象，打印输出如下：

for i,r in data.iterrows():
    print(r)

我想：

删除所有值== Nan或0的QuantifierId（并保留所有value == 1的QuantifierId）
从每一行获取该名称字段

该怎么做？

Answer 1

删除所有值== Nan或0的QuantifierId（并保留所有   值== 1的QuantifierId）

data = data.loc[(data.QuantifierId.notnull()) & (data.QuantifierId != 0)]

从每一行获取该名称字段

data.index.tolist()

如何在熊猫中与Serias合作

1 个答案: