在下面的示例中，我尝试以import java.awt.Component;
import java.awt.EventQueue;
import java.awt.image.BufferedImage;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
public class Example {
public void createAndShowGUI() {
JButton button = new JButton("Text");
button.setSize(button.getPreferredSize());
JLabel label = new JLabel();
label.setIcon(new ImageIcon(snapshot(button)));
JPanel contentPane = new JPanel();
contentPane.add(label);
JFrame frame = new JFrame();
frame.setContentPane(contentPane);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.pack();
frame.setLocationByPlatform(true);
frame.setVisible(true);
}
private BufferedImage snapshot(Component component) {
BufferedImage image = new BufferedImage(component.getWidth(), component.getHeight(),
BufferedImage.TYPE_INT_RGB);
component.paint(image.createGraphics());
return image;
}
public static void main(String[] args) {
EventQueue.invokeLater(() -> new Example().createAndShowGUI());
}
}
文件格式存储多索引pandas.DataFrame
h5如果我尝试将上述数据帧（'abc'）存储到存储中，我会收到错误，如下所示
import pandas as pd
import numpy as np
store = pd.HDFStore('c:/temp/example.h5')
idx = pd.MultiIndex.from_arrays([['first']*3,['one','two','three']], names = ['outer','inner'])
abc = pd.DataFrame(np.random.randint(1,100,9).reshape(-1,3), index = idx, columns = list('abc'))
之前我没有收到此错误，也许可能与pytable的版本更新有关。我目前正在使用3.2.2版。关于什么可以作为以h5格式存储数据帧的替代解决方案的任何指针？