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javascriptd3.jsaxes

d3js: Replace a particular tick value on X-Axis

I have a bubble chart which looks like the following:

enter image description here

The data that I am using has the following format: 

 var data = [{name: "A", rank: 1, student_percentile: 100.0, 
         admit_probability: 24},
        {name: "B", rank: 45, student_percentile: 40.3, 
         admit_probability: 24},
        {name: "C", rank: 89, student_percentile: 89.7, 
         admit_probability: 24},
        {name: "D", rank: 23, student_percentile: 10.9, 
         admit_probability: 24},
        {name: "E", rank: 56, student_percentile: 30.3, 
         admit_probability: 24},
         {name: "F", rank: 34, student_percentile: 110, 
         admit_probability: 84}];

For some values in input, I don't have correct percentile value, so I am putting by default 110. Now, I want to plot these values and on X-axis instead of 110, I want to show "NAN". For example, Here "F" has X-axis value as 110. So, I want to mark that value as "NAN".

How can I replace a value on X-axis?

My script is as follows:

var xscale = d3.scaleLinear()
        .domain(
                d3.extent(data, function(d) { return +d.student_percentile; })
            )
        .nice() 
        .range([0, width]);

    var yscale = d3.scaleLinear()
        .domain(d3.extent(data, function(d) { return +d.rank; }))
        .nice()
        .range([height, 0]);

    var xAxis = d3.axisBottom().scale(xscale);

    var yAxis = d3.axisLeft().scale(yscale);
Solution

  • Use tickFormat to change that specific value:

    .tickFormat(function(d) {
    return d === 110 ? "NAN" : d
})

    Here is a demo:

    var svg = d3.select("svg");

var scale = d3.scaleLinear()
  .domain([0, 110])
  .range([20, 480]);

var axis = d3.axisBottom(scale)
  .tickFormat(function(d) {
    return d === 110 ? "NAN" : d
  })

svg.append("g").attr("transform", "translate(0,50)")
  .call(axis)
    <script src="https://d3js.org/d3.v4.min.js"></script>
<svg width="500" height="100"></svg>