how to labelpoints in matlab in javascript

To label points on a matlab plot with JavaScript, you need to use the Plotly library. You can install the library using npm by running the following command:

index.tsx
npm install plotly.js
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Once you've installed Plotly, you can create a scatter plot and label the points with JavaScript code similar to the following:

index.tsx
var trace1 = {
  x: [1, 2, 3, 4],
  y: [10, 11, 12, 13],
  mode: 'markers+text',
  text: ['A', 'B', 'C', 'D'],
  textposition: 'top center',
  textfont: {
    family: 'Raleway, sans-serif'
  },
  marker: {
    size: 12,
    color: 'rgb(17, 157, 255)'
  }
};

var data = [trace1];

var layout = {
  xaxis: {
    range: [0.75, 4.25],
    zeroline: false,
    tickvals: [1, 2, 3, 4],
    ticktext: ['One', 'Two', 'Three', 'Four']
  },
  yaxis: {
    range: [9.75, 13.25],
    zeroline: false,
    ticksuffix: '$',
    ticks: 'outside',
    ticklen: 5,
    tickwidth: 1,
    tickcolor: '#000'
  },
  height: 500,
  width: 700
};

Plotly.newPlot('myDiv', data, layout);
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In this example, we create a scatter plot with 4 points labeled A, B, C, and D. The mode property in the trace1 object is set to markers+text to show both points and labels. The textposition property is set to top center to place the labels above the points.

The rest of the code is used to define the x and y axis ranges, tick marks, and layout of the chart. Finally, we use the Plotly.newPlot() function to create the chart and display it in a div with the id "myDiv".

You can customize this code to fit your specific use case and data.