d3.js - Data lines disappearing when using rangePoints on x-axis ordinal scale in line chart with D3 -

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i've adapted code multi-line line chart example here. biggest issue i'm having after researching changes needed make data lines disappear when use .rangepoints on x-axis ordinal scale. .range, x-axis displays nothing , data lines bunched along left side of y-axis. has fact altered original code time scale ordinal, i'm stumped further changes need make.

code below:

var margin = {top: 20, right: 80, bottom: 30, left: 50}, width = 500 - margin.left - margin.right, height = 280 - margin.top - margin.bottom;  var x = d3.scale.ordinal() .rangepoints([0, width]);  var y = d3.scale.linear() .range([height, 0]);  var color = d3.scale.category10();  var xaxis = d3.svg.axis() .scale(x) .orient("bottom");  var yaxis = d3.svg.axis() .scale(y) .orient("left");  var line = d3.svg.line() .interpolate("linear") .x(function(d) { return x(d.episodes); }) .y(function(d) { return y(d.season); });  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 + ")");  d3.csv("data.csv", function(error, data) {   color.domain(d3.keys(data[0]).filter(function(key) { return key !== "episodes"; }));  var seasons = color.domain().map(function(name) { return {   name: name,   values: data.map(function(d) {     return {date: d.episodes, season: +d[name]};   })     };   });    x.domain(data.map(function(d) { return d.episodes; }));    y.domain([ d3.min(seasons, function(c) { return d3.min(c.values, function(v) { return v.season; }); }), d3.max(seasons, function(c) { return d3.max(c.values, function(v) { return v.season; }); })   ]);    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("viewership (in mlns)");    var s = svg.selectall(".city")   .data(seasons) .enter().append("g")   .attr("class", "city");    s.append("path")   .attr("class", "line")   .attr("d", function(d) { return line(d.values); })   .style("stroke", function(d) { return color(d.name); });    s.append("text")   .datum(function(d) { return {name: d.name, value: d.values[d.values.length - 1]}; })   .attr("transform", function(d) { return "translate(" + x(d.value.date) + "," + y(d.value.season) + ")"; })   .attr("x", 3)   .attr("dy", ".35em")   .text(function(d) { return d.name; }); });


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