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我想用d3.js生成一個平行座標我的問題是第一個比例尺應該顯示不同的字符串。d3.js用一個不同的比例平行座標
與原來的代碼看起來是這樣的： 
，並與我的測試，它看起來像這樣（沒有臺詞）： 
錯誤代碼是：
Error: Invalid value for attribute d="M33,NaNL99,161.37817638266068L165,6.543121881682145L231,16.962488563586458L297,180"
這裏是我的代碼：
function parallelChart (id, size) {
if(size == 'small') {
var margin = {top: 20, right: 80, bottom: 30, left: 50},
width = 460 - margin.left - margin.right,
height = 230 - margin.top - margin.bottom;
} else {
var margin = {top: 20, right: 80, bottom: 30, left: 50},
width = 960 - margin.left - margin.right,
height = 500 - margin.top - margin.bottom;
}
var x = d3.scale.ordinal().rangePoints([0, width], 1),
y = {},
dragging = {};
var line = d3.svg.line(),
axis = d3.svg.axis().orient("left"),
background,
foreground;
var svg = d3.select(id).append("svg")
.attr("class", 'center-block')
.attr("width", width + margin.left + margin.right)
.attr("height", height + margin.top + margin.bottom)
.append("g")
.attr("transform", "translate(" + margin.left + "," + margin.top + ")");
// Original
d3.csv("dataNew.csv", function(error, healthdata) {
x.domain(dimensions = d3.keys(healthdata[0]).filter(function(d) {
return d != "Datum" && (y[d] = d3.scale.linear()
.domain(d3.extent(healthdata, function(p) { return +p[d]; }))
.range([height, 0]));
}));
// this did not work
// d3.csv("dataNew.csv", function(error, healthdata) {
// x.domain(dimensions = d3.keys(healthdata[0]).filter(function(d) {
// if(d == "Datum") {
// return d == "Datum" && ((y[d] = d3.time.scale()
// .domain(d3.extent(healthdata, function(p) { return +p[d]; }))
// .range([height, 0])));
// }
// return d != "Datum" && ((y[d] = d3.scale.linear()
// .domain(d3.extent(healthdata, function(p) { return +p[d]; }))
// .range([height, 0])));
// }));
// Add grey background lines for context.
background = svg.append("g")
.attr("class", "background")
.selectAll("path")
.data(healthdata)
.enter().append("path")
.attr("d", path);
// Add blue foreground lines for focus.
foreground = svg.append("g")
.attr("class", "foreground")
.selectAll("path")
.data(healthdata)
.enter().append("path")
.attr("d", path);
// Add a group element for each dimension.
var g = svg.selectAll(".dimension")
.data(dimensions)
.enter().append("g")
.attr("class", "dimension")
.attr("transform", function(d) { return "translate(" + x(d) + ")"; })
.call(d3.behavior.drag()
.origin(function(d) { return {x: x(d)}; })
.on("dragstart", function(d) {
dragging[d] = x(d);
background.attr("visibility", "hidden");
})
.on("drag", function(d) {
dragging[d] = Math.min(width, Math.max(0, d3.event.x));
foreground.attr("d", path);
dimensions.sort(function(a, b) { return position(a) - position(b); });
x.domain(dimensions);
g.attr("transform", function(d) { return "translate(" + position(d) + ")"; })
})
.on("dragend", function(d) {
delete dragging[d];
transition(d3.select(this)).attr("transform", "translate(" + x(d) + ")");
transition(foreground).attr("d", path);
background
.attr("d", path)
.transition()
.delay(500)
.duration(0)
.attr("visibility", null);
}));
// Add an axis and title.
g.append("g")
.attr("class", "axis")
.each(function(d) { d3.select(this).call(axis.scale(y[d])); })
.append("text")
.style("text-anchor", "middle")
.attr("y", -9)
.text(function(d) { return d; });
// Add and store a brush for each axis.
g.append("g")
.attr("class", "brush")
.each(function(d) {
d3.select(this).call(y[d].brush = d3.svg.brush().y(y[d]).on("brushstart", brushstart).on("brush", brush));
})
.selectAll("rect")
.attr("x", -8)
.attr("width", 16);
});
function position(d) {
var v = dragging[d];
return v == null ? x(d) : v;
}
function transition(g) {
return g.transition().duration(500);
}
// Returns the path for a given data point.
function path(d) {
return line(dimensions.map(function(p) { return [position(p), y[p](d[p])]; }));
}
function brushstart() {
d3.event.sourceEvent.stopPropagation();
}
// Handles a brush event, toggling the display of foreground lines.
function brush() {
var actives = dimensions.filter(function(p) { return !y[p].brush.empty(); }),
extents = actives.map(function(p) { return y[p].brush.extent(); });
foreground.style("display", function(d) {
return actives.every(function(p, i) {
return extents[i][0] <= d[p] && d[p] <= extents[i][1];
}) ? null : "none";
});
}
}