我不明白这个错误:
TypeError: string is undefined function d3_time_parse(date, template, string, j) { var c, p, i = 0, n = template.length, m = string.length; ...
这是我的代码:
var margin = {上:20,右:80,下:30,左:50}, 宽度 = 960 - margin.left - margin.right, 高度 = 500 - margin.top - margin.bottom; var parseDate = d3.time.format("%Y%m%d").parse; var x = d3.time.scale() .range([0, 宽度]); var y = d3.scale.linear() .range([高度, 0]); var color = d3.scale.category10(); var xAxis = d3.svg.axis() .scale(x) .orient("底部"); var yAxis = d3.svg.axis() .scale(y) .orient("左"); var line = d3.svg.line() .interpolate("基础") .x(函数(d) { 返回 x(d.date); }) .y(function(d) { return y(d.index); }); var svg = d3.select("body").append("svg") .attr("宽度", width + margin.left + margin.right) .attr("高度", 高度 + 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 !== "date"; })); data.forEach(函数(d){ d.date = parseDate(d.date); }); var 索引 = color.domain().map(function(name) { 返回 { 姓名:姓名, 值:data.map(函数(d){ 返回{日期:d.date,索引:+d[name]}; }) }; }); x.domain(d3.extent(data, function(d) { return d.date; })); y.domain([ d3.min(indexes, function(c) { return d3.min(c.values, function(v) { return v.index; }); }), d3.max(indexes, function(c) { return d3.max(c.values, function(v) { return v.index; }); }) ]); svg.append("g") .attr("类", "x 轴") .attr("变换", "翻译(0," + 高度 + ")") .call(xAxis); svg.append("g") .attr("类", "y 轴") .call(yAxis) .append("文本") .attr("变换", "旋转(-90)") .attr("y", 6) .attr("dy", ".71em") .style("文本锚", "结束") .text("变化 (%)"); var index = svg.selectAll(".index") .data(索引) .enter().append("g") .attr("类", "索引"); index.append("路径") .attr("类", "行") .attr("d", function(d) { return line(d.values); }) .style("stroke", function(d) { return color(d.name); }); index.append("文本") .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.index) + ")"; }) .attr("x", 3) .attr("dy", ".35em") .text(function(d) { return d.name; }); });
我的 csv 文件如下所示:
日期,DAX,CAC40,FTSE,NASDAQ,其他 20060407,-0.000712859,-0.009013212,0.010819606,0.009846526,0.003082604 20060413,-0.007765968,-0.024263398,0.011238971,0.004128621,0.005952774 20060421,0.02261859,0.00330204,0.028734861,0.001688981,0.003459211 20060428,0.007170521,-0.007531405,0.010534438,-0.002416181,0.004012361 ...
有人可以帮我吗?谢谢你