visualization-2.js

import { Line } from 'react-chartjs-2';

...

        // data for LINE
        const chart_data = {
            // x_axis (time range)
            labels: x_axis,
            // dataset LINE1
            datasets: [{
                label: "line1",
                lineTension: 0.1,
                fill: false,
                pointHoverBackgroundColor: "yellow", 
                borderColor: "purple",
                pointRadius: 4,
                pointHitRadius: 10,                       
                // data (line1)   
                data: line_line1,
                
                },
                // dataset LINE2
                {
                label: "line2",
                lineTension: 0.1,
                fill: false,
                pointHoverBackgroundColor: "brown",  
                borderColor: "green",
                pointRadius: 4,
                pointHitRadius: 10,
                // data (line2)   
                data: line_line2
                },
                // dataset LINE3
                {
                label: "line3",
                lineTension: 0.1,
                fill: false,
                pointHoverBackgroundColor: "brown",  
                borderColor: "red",
                pointRadius: 4,
                pointHitRadius: 10, 
                // data (line3)                
                data: line_line3
                }
            ]
            }
    
        // LINE options
        const options = {
            scales: {
                yAxes: [{
                  display: true,
                  ticks: {
                    beginAtZero:true,
                    // y axis min and max
                    min: -2,
                    max: 5 
                  }
                }]
              }        
        }  
        return(
                <Line 
                // data fro chart_data
                data={chart_data} 
                // options
                options={options}   
                />  
        )                        

    }

}