Spasi kosong yang tidak diperlukan sebelum bilah pertama pada diagram batang D3

Ini contoh data saya:

var data = 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Ini adalah kode gambar bagan.

var margin = {top: 20, right: 20, bottom: 30, left: 40},
        width = (960 - margin.left - margin.right) * data.length/50,
        height = 500 - margin.top - margin.bottom;

    var x = d3.scale.ordinal()
        .domain([0,1])
        .rangeRoundBands([0, width], 0.1);

    var y = d3.scale.linear()
        .range([height, 0]);

    var xAxis = d3.svg.axis()
        .scale(x)
        .orient("bottom")


    var yAxis = d3.svg.axis()
        .scale(y)
        .orient("left")
        .ticks(10, "%");

    var svg = d3.select("body").append("svg")
        .attr("width", width + margin.left + margin.right)
        .attr("height", height + margin.top + margin.bottom)
      .append("g")
        .attr("transform", "translate(" + margin.left + "," + margin.top + ")");
      x.domain(data.map(function(d) { return d.name; }));
      y.domain([0, d3.max(data, function(d) { return d.members_count; })]);

      svg.append("g")
          .attr("class", "x axis")
          .attr("transform", "translate(0," + height + ")")
          .call(xAxis);

      svg.append("g")
          .attr("class", "y axis")
          .call(yAxis)
        .append("text")
          .attr("transform", "rotate(-90)")
          .attr("y", 6)
          .attr("dy", ".71em")
          .style("text-anchor", "end")
          .text("Frequency");

      svg.selectAll(".bar")
          .data(data)
        .enter().append("rect")
          .attr("class", "bar")
          .attr("fill","green")
          .attr("x", function(d) { return x(d.name); })
          .attr("width", x.rangeBand())
          .attr("y", function(d) { return y(d.members_count); })
          .attr("height", function(d) { return height - y(d.members_count); });

Masalah yang saya dapatkan adalah saya memiliki ruang putih yang terlihat jelek. Spasi ini berada sebelum bar pertama dan juga setelah bar terakhir pada grafik. Saya telah mencoba mengubah nilai x pada bilah, Tapi menurut saya itu bukan cara yang baik untuk melakukannya.

Ruang ini tidak muncul jika kumpulan datanya kecil. Namun jika kumpulan datanya besar maka ruang ini akan muncul. Bagaimana cara menghapus spasi ini dari awal dan akhir.